{"id":1018,"date":"2026-03-05T07:14:16","date_gmt":"2026-03-05T07:14:16","guid":{"rendered":"https:\/\/cn-hawe.com\/?p=1018"},"modified":"2026-03-09T00:50:59","modified_gmt":"2026-03-09T00:50:59","slug":"press-brake-guarding","status":"publish","type":"post","link":"https:\/\/cn-hawe.com\/vi\/press-brake-guarding\/","title":{"rendered":"\u1ea2o t\u01b0\u1edfng v\u1ec1 b\u1ea3o v\u1ec7 m\u00e1y ch\u1ea5n t\u00f4n: C\u00e1ch x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng an to\u00e0n nhi\u1ec1u l\u1edbp m\u00e0 ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd kh\u00f4ng b\u1ecf qua"},"content":{"rendered":"

T\u00f4i b\u01b0\u1edbc v\u00e0o m\u1ed9t c\u1eeda h\u00e0ng ba th\u00e1ng sau khi h\u1ecd l\u1eafp \u0111\u1eb7t nh\u1eefng r\u00e8m s\u00e1ng m\u1edbi tinh tr\u00ean m\u1ed7i m\u00e1y ch\u1ea5n th\u1ee7y l\u1ef1c. C\u1ed9t m\u00e0u v\u00e0ng, d\u00e2y \u0111i\u1ec7n s\u1ea1ch s\u1ebd, gi\u1ea5y t\u1edd OSHA \u0111\u01b0\u1ee3c \u0111\u00f3ng khung treo tr\u00ean t\u01b0\u1eddng. T\u00f4i nh\u00ecn xu\u1ed1ng b\u1ed9 ph\u00e1t c\u1ee7a c\u00e1i m\u00e1y t\u1ec7 nh\u1ea5t v\u00e0 th\u1ea5y m\u1ed9t d\u1ea3i b\u0103ng keo gi\u1ea5y d\u00e1n ch\u1eb7n ba tia s\u00e1ng.<\/p>\n\n\n\n

H\u1ecd kh\u00f4ng h\u1ec1 che gi\u1ea5u \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n

Trong m\u1ed9t cu\u1ed9c \u0111\u00e1nh gi\u00e1 th\u1ef1c \u0111\u1ecba v\u1edbi h\u01a1n 100 m\u00e1y ch\u1ea5n th\u1ee7y l\u1ef1c, 92% r\u00e8m s\u00e1ng \u0111\u00e3 b\u1ecb c\u1ed1 t\u00ecnh v\u01b0\u1ee3t qua ch\u1ec9 trong v\u00e0i th\u00e1ng sau khi l\u1eafp \u0111\u1eb7t. Kh\u00f4ng ph\u1ea3i b\u1ecb c\u00e1c k\u1ef9 s\u01b0 hack. B\u1ecb v\u00f4 hi\u1ec7u b\u1eb1ng b\u0103ng keo. B\u00eca c\u00e1c-t\u00f4ng. M\u1ed9t s\u1ee3i d\u00e2y n\u1ed1i t\u1eaft qua c\u00e1c \u0111\u1ea7u n\u1ed1i. Con s\u1ed1 n\u00e0y kh\u00f4ng n\u00ean khi\u1ebfn b\u1ea1n t\u1ee9c gi\u1eadn v\u1edbi c\u00f4ng nh\u00e2n v\u1eadn h\u00e0nh.<\/p>\n\n\n\n

N\u00f3 n\u00ean khi\u1ebfn b\u1ea1n lo l\u1eafng v\u1ec1 thi\u1ebft k\u1ebf c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

T\u1ea1i sao r\u00e8m s\u00e1ng m\u1edbi c\u1ee7a b\u1ea1n \u0111\u00e3 b\u1ecb v\u00f4 hi\u1ec7u tr\u00ean s\u00e0n x\u01b0\u1edfng<\/h2>\n\n\n\n

V\u00e0i n\u0103m tr\u01b0\u1edbc, t\u00f4i \u0111i\u1ec1u tra m\u1ed9t v\u1ee5 c\u1eaft c\u1ee5t tr\u00ean m\u1ed9t m\u00e1y ch\u1ea5n d\u00e0i 10 foot ch\u1ea1y inox m\u1ecfng. X\u01b0\u1edfng c\u00f3 m\u1ed9t r\u00e8m s\u00e1ng \u0111\u1ea1t chu\u1ea9n. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u00e3 d\u00e1n k\u00edn c\u00e1c tia th\u1ea5p \u0111\u1ec3 c\u00f3 th\u1ec3 \u201cth\u1ea3\u201d nh\u1eefng chi ti\u1ebft nh\u1ecf v\u00e0o khu\u00f4n m\u00e0 kh\u00f4ng b\u1ecb d\u1eebng m\u00e1y li\u00ean t\u1ee5c v\u00ec nh\u1eefng l\u1ea7n k\u00edch ho\u1ea1t phi\u1ec1n ph\u1ee9c. Tay \u00e1o c\u1ee7a anh ta ch\u1ea1m v\u00e0o \u0111\u1ea7u ch\u00e0y trong l\u00fac m\u00e1y ch\u1ea1y ch\u1eadm t\u1eebng b\u01b0\u1edbc. Anh ta m\u1ea5t hai ng\u00f3n tay tr\u01b0\u1edbc khi \u0111\u1ea7u ch\u1ea5n ch\u1ea1m \u0111\u00e1y.<\/p>\n\n\n\n

R\u00e8m s\u00e1ng ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c nh\u01b0 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t. N\u00f3 ch\u1ec9 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1ch c\u00f4ng vi\u1ec7c th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 ph\u1ea7n kh\u00f3 ch\u1ecbu: khi m\u1ed9t bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 t\u1ea1o ra s\u1ef1 c\u1ea3n tr\u1edf\u2014c\u00e1c l\u1ea7n reset th\u00eam, t\u01b0 th\u1ebf v\u1edbi tay kh\u00f3 kh\u0103n, t\u1ea7m nh\u00ecn b\u1ecb che\u2014ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd lo\u1ea1i b\u1ecf s\u1ef1 c\u1ea3n tr\u1edf \u0111\u00f3. C\u00e1ch nhanh nh\u1ea5t l\u00e0 v\u00f4 hi\u1ec7u thi\u1ebft b\u1ecb. Tr\u00ean h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng, \u0111i\u1ec1u \u0111\u00f3 \u0111\u01a1n gi\u1ea3n nh\u01b0 \u0111\u1eb7t b\u00eca c\u00e1c-t\u00f4ng tr\u01b0\u1edbc b\u1ed9 nh\u1eadn \u0111\u1ec3 gi\u1eef tia s\u00e1ng \u201cli\u00ean t\u1ee5c\u201d, ho\u1eb7c n\u1ed1i t\u1eaft r\u01a1-le an to\u00e0n trong qu\u00e1 tr\u00ecnh setup. Kh\u00f4ng c\u00f3 \u00fd \u0111\u1ed3 x\u1ea5u. Ch\u1ec9 l\u00e0 \u00e1p l\u1ef1c s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

V\u1eady c\u00e2u h\u1ecfi th\u1ef1c s\u1ef1 kh\u00f4ng ph\u1ea3i l\u00e0 r\u00e8m s\u00e1ng c\u1ee7a b\u1ea1n c\u00f3 \u0111\u1ea1t chu\u1ea9n hay kh\u00f4ng.<\/p>\n\n\n\n

M\u00e0 l\u00e0 n\u00f3 c\u00f3 nhanh h\u01a1n khi s\u1eed d\u1ee5ng so v\u1edbi khi b\u1ecb v\u00f4 hi\u1ec7u hay kh\u00f4ng.<\/p>\n\n\n\n

Khi \u201c\u0110\u1ea1t chu\u1ea9n OSHA\u201d v\u1eabn \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c ng\u00f3n tay n\u1eb1m trong khe ch\u1ea5n<\/h3>\n\n\n\n
\"Khi<\/figure>\n\n\n\n

T\u00f4i \u0111\u00e3 th\u1ea5y nh\u1eefng m\u00e1y ch\u1ea5n c\u00f3 h\u1ed3 s\u01a1 tu\u00e2n th\u1ee7 s\u1ea1ch s\u1ebd nh\u01b0ng v\u1eabn c\u00f3 b\u00e0n tay n\u1eb1m trong khe ch\u1ea5n khi m\u00e1y ch\u1ea1y. M\u1ed9t x\u01b0\u1edfng c\u00f3 b\u1ed9 ch\u1eafn c\u1ed1 \u0111\u1ecbnh v\u00e0 \u0111i\u1ec1u khi\u1ec3n hai tay\u2014an to\u00e0n chu\u1ea9n m\u1ef1c. Cho \u0111\u1ebfn khi h\u1ecd b\u1eaft \u0111\u1ea7u ch\u1ea5n c\u00e1c thanh d\u00e0i. Chi ti\u1ebft gia c\u00f4ng b\u1eadt l\u00ean trong h\u00e0nh tr\u00ecnh tr\u1edf l\u1ea1i, va v\u00e0o b\u1ed9 ch\u1eafn, v\u00e0 b\u1ecb k\u1eb9t. C\u00f4ng nh\u00e2n th\u00e1o b\u1ed9 ch\u1eafn \u201cch\u1ec9 cho c\u00f4ng vi\u1ec7c n\u00e0y\u201d. N\u00f3 kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c l\u1eafp l\u1ea1i.<\/p>\n\n\n\n

M\u00e1y th\u00ec \u0111\u1ea1t chu\u1ea9n. Quy tr\u00ecnh th\u00ec kh\u00f4ng.<\/p>\n\n\n\n

OSHA 1910.212 kh\u00f4ng quan t\u00e2m quy \u0111\u1ecbnh c\u1ee7a b\u1ea1n tao nh\u00e3 th\u1ebf n\u00e0o. \u0110\u1ea7u ch\u1ea5n ch\u1ec9 quan t\u00e2m li\u1ec7u c\u00f3 th\u1ecbt n\u1eb1m gi\u1eefa ch\u00e0y v\u00e0 khu\u00f4n hay kh\u00f4ng. N\u1ebfu chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 c\u1ee7a b\u1ea1n b\u1ecf qua c\u00e1ch chi ti\u1ebft \u0111\u01b0\u1ee3c gi\u1eef, l\u1eadt, v\u00e0 c\u0103n sau th\u1ef1c t\u1ebf, b\u1ed9 ch\u1eafn s\u1ebd tr\u1edf th\u00e0nh v\u1ea5n \u0111\u1ec1 c\u1ea7n gi\u1ea3i. V\u00e0 ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd gi\u1ea3i n\u00f3 b\u1eb1ng c\u1edd l\u00ea.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao \u201c\u0111\u1ea1t chu\u1ea9n\u201d v\u00e0 \u201c\u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7\u201d kh\u00f4ng \u0111\u1ed3ng ngh\u0129a tr\u00ean m\u00e1y ch\u1ea5n.<\/p>\n\n\n\n

Ch\u00fang ta th\u1ef1c s\u1ef1 \u0111ang t\u00ednh to\u00e1n \u0111i\u1ec1u g\u00ec khi thi\u1ebft l\u1eadp c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y?<\/p>\n\n\n\n

Ng\u1ed9 nh\u1eadn \u201cKho\u1ea3ng c\u00e1ch an to\u00e0n\u201d: T\u1ea1i sao kho\u1ea3ng t\u1ed1i thi\u1ec3u 4 inch t\u1ea1o ra c\u1ea3m gi\u00e1c an to\u00e0n gi\u1ea3 t\u1ea1o<\/h3>\n\n\n\n
\"T\u1ea1i<\/figure>\n\n\n\n

H\u1ea7u h\u1ebft c\u00e1c x\u01b0\u1edfng l\u1eafp r\u00e8m s\u00e1ng C\u00e1ch khu\u00f4n 2\u20133 feet<\/strong> V\u00ec \u0111\u00f3 l\u00e0 c\u00e1ch h\u1ecd \u0111\u01b0\u1ee3c d\u1ea1y: t\u00ednh th\u1eddi gian d\u1eebng m\u00e1y, c\u1ed9ng th\u00eam kho\u1ea3ng c\u00e1ch an to\u00e0n, gi\u1eef m\u1ee9c b\u1ea3o th\u1ee7. T\u00f4i \u0111\u00e3 ki\u1ec3m to\u00e1n nh\u1eefng m\u00e1y ch\u1ea5n n\u01a1i \u0111\u1ed9 nh\u1ea1y \u0111\u1ed1i t\u01b0\u1ee3ng t\u1ed1i thi\u1ec3u l\u00e0 4 inch<\/strong>, \u0111\u1eb7t \u0111\u1ee7 l\u00f9i l\u1ea1i \u0111\u1ec3 m\u1ed9t ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng nghi\u00eang v\u00e0o v\u00f9ng khu\u00f4n tr\u01b0\u1edbc khi ph\u00e1 tia.<\/p>\n\n\n\n

Tr\u00ean gi\u1ea5y t\u1edd, n\u00f3 \u0111\u00e1p \u1ee9ng c\u00f4ng th\u1ee9c.<\/p>\n\n\n\n

Ngo\u00e0i th\u1ef1c t\u1ebf, n\u00f3 t\u1ea1o ra m\u1ed9t th\u00f3i quen: b\u01b0\u1edbc v\u00e0o b\u00ean trong m\u00e0n ch\u1eafn trong l\u00fac c\u00e0i \u0111\u1eb7t, gi\u1eef ph\u1ea7n chi ti\u1ebft t\u1ea1i ch\u1ed7, r\u1ed3i t\u1eeb t\u1eeb h\u1ea1 tr\u1ee5c. Sau m\u1ed9t tu\u1ea7n b\u1ecb ng\u1eaft qu\u00e3ng phi\u1ec1n to\u00e1i v\u00e0 ph\u1ea3i v\u1edbi tay xa, ai \u0111\u00f3 l\u1eafp m\u1ed9t mi\u1ebfng b\u00eca c\u1ee9ng v\u00e0o v\u1ecf ph\u00e1t tia \u0111\u1ec3 c\u00e1c tia b\u1ecb ch\u1eb7n v\u0129nh vi\u1ec5n.<\/p>\n\n\n\n

\u0110i\u1ec1u \u0111\u00e3 thay \u0111\u1ed5i trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y: ANSI B11.3 cho ph\u00e9p thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 t\u1ea1i \u0111i\u1ec3m v\u1eadn h\u00e0nh \u1edf kho\u1ea3ng c\u00e1ch g\u1ea7n khi th\u1eddi gian d\u1eebng d\u01b0\u1edbi 30 mili gi\u00e2y<\/strong>. \u0110i\u1ec1u \u0111\u00f3 ngh\u0129a l\u00e0 m\u00e0n ch\u1eafn c\u00f3 th\u1ec3 \u0111\u1eb7t c\u00e1ch khu\u00f4n ch\u1ec9 v\u00e0i inch, kh\u00f4ng ph\u1ea3i v\u00e0i feet. Logic \u201ckho\u1ea3ng c\u00e1ch an to\u00e0n\u201d c\u0169 th\u01b0\u1eddng b\u1ecf qua hi\u1ec7u su\u1ea5t d\u1eebng th\u1ef1c t\u1ebf v\u00e0 m\u1eb7c \u0111\u1ecbnh ch\u1ecdn kho\u1ea3ng c\u00e1ch thay v\u00ec t\u1ed1c \u0111\u1ed9.<\/p>\n\n\n\n

Kho\u1ea3ng c\u00e1ch t\u1ea1o c\u1ea3m gi\u00e1c an to\u00e0n. T\u1ed1c \u0111\u1ed9 m\u1edbi l\u00e0 th\u1ee9 th\u1ef1c s\u1ef1 b\u1ea3o v\u1ec7.<\/p>\n\n\n\n

V\u1eady t\u1ea1i sao c\u00e1c x\u01b0\u1edfng v\u1eabn ch\u1ecdn c\u1ea5u h\u00ecnh m\u00e0 ng\u01b0\u1eddi v\u1eadn h\u00e0nh gh\u00e9t?<\/p>\n\n\n\n

T\u00ecnh th\u1ebf kh\u00f3 kh\u0103n khi c\u00e0i \u0111\u1eb7t: Khi an to\u00e0n tr\u1edf th\u00e0nh n\u00fat th\u1eaft s\u1ea3n xu\u1ea5t<\/h3>\n\n\n\n
\"T\u00ecnh<\/figure>\n\n\n\n

H\u00e3y quan s\u00e1t m\u1ed9t m\u00e1y u\u1ed1n trong l\u00fac c\u00e0i \u0111\u1eb7t ph\u1ee9c t\u1ea1p\u2014thay nhi\u1ec1u d\u1ee5ng c\u1ee5, ch\u1ea1y ng\u1eafn, h\u00ecnh d\u1ea1ng l\u1ea1. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u00e1 tia m\u01b0\u1eddi l\u1ea7n tr\u01b0\u1edbc khi ra \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m t\u1ed1t \u0111\u1ea7u ti\u00ean. M\u1ed7i l\u1ea7n gi\u00e1n \u0111o\u1ea1n ngh\u0129a l\u00e0 ph\u1ea3i \u0111\u1eb7t l\u1ea1i, \u0111i\u1ec1u ch\u1ec9nh l\u1ea1i, th\u1eed l\u1ea1i. N\u1ebfu \u0111i\u1ec1u \u0111\u00f3 c\u1ed9ng th\u00eam ngay c\u1ea3 20 gi\u00e2y m\u1ed7i chu tr\u00ecnh tr\u00ean m\u1ed9t l\u00f4 200 s\u1ea3n ph\u1ea9m, b\u1ea1n v\u1eeba m\u1ea5t h\u01a1n m\u1ed9t gi\u1edd.<\/p>\n\n\n\n

B\u00e2y gi\u1edd \u0111\u1eb7t ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u00f3 v\u00e0o ch\u1ebf \u0111\u1ed9 tr\u1ea3 theo s\u1ea3n l\u01b0\u1ee3ng, ho\u1eb7c d\u01b0\u1edbi m\u1ed9t gi\u00e1m s\u00e1t vi\u00ean \u0111ang nh\u00ecn ch\u1eb1m v\u00e0o b\u1ea3ng.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 th\u1ea5y tr\u00f2 gian l\u1eadn di\u1ec5n ra c\u00f9ng m\u1ed9t ki\u1ec3u: trong l\u00fac c\u00e0i \u0111\u1eb7t, ai \u0111\u00f3 ch\u00e8n m\u1ed9t d\u1ea3i kim lo\u1ea1i m\u1ecfng v\u00e0o r\u00e3nh b\u00ean \u0111\u1ec3 gi\u1eef m\u00e0n ch\u1eafn \u00e1nh s\u00e1ng \u1edf tr\u1ea1ng th\u00e1i lu\u00f4n \u201cth\u00f4ng\u201d. \u201cCh\u1ec9 cho \u0111\u1ebfn khi ch\u1ec9nh xong.\u201d D\u1ea3i \u0111\u00f3 \u1edf l\u1ea1i su\u1ed1t ca. \u0110\u00f4i khi l\u00e0 nhi\u1ec1u th\u00e1ng.<\/p>\n\n\n\n

An to\u00e0n kh\u00f4ng th\u1ea5t b\u1ea1i v\u00ec ng\u01b0\u1eddi v\u1eadn h\u00e0nh li\u1ec1u l\u0129nh. N\u00f3 th\u1ea5t b\u1ea1i v\u00ec n\u00f3 tr\u1edf th\u00e0nh ph\u1ea7n ch\u1eadm nh\u1ea5t c\u1ee7a c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n

V\u00e0 n\u1ebfu m\u1ed9t bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 l\u00e0 ph\u1ea7n ch\u1eadm nh\u1ea5t c\u1ee7a c\u00f4ng vi\u1ec7c, n\u00f3 s\u1ebd kh\u00f4ng t\u1ed3n t\u1ea1i \u0111\u01b0\u1ee3c m\u1ed9t tu\u1ea7n.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 s\u1ef1 thay \u0111\u1ed5i t\u00f4i c\u1ea7n b\u1ea1n th\u1ef1c hi\u1ec7n: ng\u1eebng h\u1ecfi li\u1ec7u thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 m\u00e1y \u00e9p u\u1ed1n c\u1ee7a b\u1ea1n c\u00f3 \u0111\u00e1p \u1ee9ng OSHA hay kh\u00f4ng, v\u00e0 b\u1eaft \u0111\u1ea7u h\u1ecfi li\u1ec7u n\u00f3 c\u00f3 t\u00f4n tr\u1ecdng h\u00e0nh vi con ng\u01b0\u1eddi d\u01b0\u1edbi \u00e1p l\u1ef1c s\u1ea3n xu\u1ea5t hay kh\u00f4ng. N\u1ebfu kh\u00f4ng, vi\u1ec7c v\u01b0\u1ee3t qua n\u00f3 kh\u00f4ng ch\u1ec9 l\u00e0 kh\u1ea3 n\u0103ng.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 m\u1ed9t m\u1ee5c tr\u00ean l\u1ecbch tr\u00ecnh.<\/p>\n\n\n\n

\u0110i\u1ec3m ma s\u00e1t v\u1ec1 c\u00f4ng th\u00e1i h\u1ecdc: T\u1ea1i sao ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u00e1 ho\u1ea1i ch\u00ednh ng\u00f3n tay c\u1ee7a m\u00ecnh<\/h2>\n\n\n\n

V\u00e0i m\u00f9a \u0111\u00f4ng tr\u01b0\u1edbc, t\u00f4i \u0111i\u1ec1u tra m\u1ed9t ch\u1ea5n th\u01b0\u01a1ng nghi\u1ec1n tr\u00ean m\u1ed9t m\u00e1y \u00e9p u\u1ed1n th\u1ee7y l\u1ef1c 12 foot \u0111ang u\u1ed1n c\u00e1c h\u1ed9p s\u00e2u. X\u01b0\u1edfng \u0111\u00e3 l\u1eafp m\u1ed9t thanh ch\u1eafn c\u1ed1 \u0111\u1ecbnh \u0111\u1eb7t l\u00f9i C\u00e1ch khu\u00f4n 2\u20133 feet<\/strong> so v\u1edbi khu\u00f4n \u0111\u1ec3 \u0111\u00e1p \u1ee9ng kho\u1ea3ng c\u00e1ch an to\u00e0n t\u00ednh to\u00e1n. \u1ede c\u00fa u\u1ed1n th\u1ee9 ba c\u1ee7a chu\u1ed7i b\u1ed1n l\u1ea7n, ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u1ea3i \u0111\u1ee1 m\u1ed9t g\u1edd trong khi ng\u1eafm \u0111\u01b0\u1eddng u\u1ed1n tr\u00ean g\u1edd kia. Thanh ch\u1eafn ch\u1eb7n t\u01b0 th\u1ebf c\u1ee7a anh ta, n\u00ean anh ta v\u1edbi quanh n\u00f3. Tr\u1ee5c \u00e9p h\u1ea1 xu\u1ed1ng trong l\u00fac ch\u1ea1y ch\u1ebf \u0111\u1ed9 t\u1eebng inch. Ba ng\u00f3n tay b\u1ecb \u00e9p d\u1eb9p gi\u1eefa ch\u00e0y v\u00e0 khu\u00f4n.<\/p>\n\n\n\n

Chi\u1ebfc ch\u1eafn v\u1eabn c\u1ed1 \u0111\u1ecbnh t\u1ea1i ch\u1ed7. Ng\u00f3n tay c\u1ee7a anh ta th\u00ec kh\u00f4ng.<\/p>\n\n\n\n

C\u1ea3nh t\u01b0\u1ee3ng \u0111\u00f3 ch\u00ednh l\u00e0 \u0111i\u1ec1u ch\u00fang ta \u0111ang th\u1eadt s\u1ef1 n\u00f3i \u0111\u1ebfn khi h\u1ecfi t\u1ea1i sao c\u00e1c c\u00f4ng nh\u00e2n \u201cph\u00e1 h\u1ecfng\u201d c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7. Kh\u00f4ng ph\u1ea3i v\u00ec l\u01b0\u1eddi bi\u1ebfng. Kh\u00f4ng ph\u1ea3i v\u00ec ngu ng\u1ed1c. M\u00e0 l\u00e0 do s\u1ef1 kh\u00f4ng kh\u1edbp v\u1ec1 m\u1eb7t v\u1eadt l\u00fd gi\u1eefa c\u00e1ch m\u1ed9t c\u00fa u\u1ed1n ph\u1ee9c t\u1ea1p th\u1ef1c s\u1ef1 di\u1ec5n ra v\u00e0 c\u00e1ch thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 gi\u1ea3 \u0111\u1ecbnh n\u00f3 di\u1ec5n ra. N\u1ebfu v\u1ecb tr\u00ed an to\u00e0n v\u00e0 v\u1ecb tr\u00ed l\u00e0m vi\u1ec7c hi\u1ec7u qu\u1ea3 l\u00e0 hai n\u01a1i kh\u00e1c nhau, th\u00ec c\u00f4ng nh\u00e2n s\u1ebd \u0111\u1ee9ng \u1edf n\u01a1i hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

V\u1eady \u0111i\u1ec1u g\u00ec th\u1ef1c s\u1ef1 x\u1ea3y ra t\u1ea1i \u0111i\u1ec3m v\u1eadn h\u00e0nh m\u00e0 c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf b\u1ecf s\u00f3t?<\/p>\n\n\n\n

\u0110i\u1ec1u G\u00ec Th\u1ef1c S\u1ef1 X\u1ea3y Ra T\u1ea1i \u0110i\u1ec3m V\u1eadn H\u00e0nh Trong M\u1ed9t C\u00fa U\u1ed1n Ph\u1ee9c T\u1ea1p?<\/h3>\n\n\n\n

H\u00e3y quan s\u00e1t m\u1ed9t c\u00fa u\u1ed1n \u0111\u01a1n gi\u1ea3n 90 \u0111\u1ed9 tr\u00ean th\u00e9p m\u1ecfng m\u1ec1m v\u00e0 b\u1ea1n s\u1ebd ngh\u0129 vi\u1ec7c b\u1ea3o v\u1ec7 l\u00e0 d\u1ec5 d\u00e0ng. Hai tay \u0111\u1eb7t tr\u00ean t\u1ea5m kim lo\u1ea1i, gi\u00e1 \u0111\u1ee1 sau \u0111\u1eb7t \u0111\u1ed9 s\u00e2u, piston ho\u1ea1t \u0111\u1ed9ng, s\u1ea3n ph\u1ea9m r\u01a1i xu\u1ed1ng. G\u1ecdn g\u00e0ng.<\/p>\n\n\n\n

Gi\u1edd h\u00e3y thay b\u1eb1ng m\u1ed9t h\u1ed9p th\u00e9p kh\u00f4ng g\u1ec9 d\u00e0y 14 gauge, d\u00e0i 36 inch, b\u1ed1n c\u00fa u\u1ed1n, b\u00e1n k\u00ednh trong nh\u1ecf. \u1ede c\u00fa u\u1ed1n th\u1ee9 hai, m\u1ed9t c\u1ea1nh mu\u1ed1n nghi\u00eang xu\u1ed1ng v\u00ec tr\u1ecdng l\u1ef1c. \u1ede c\u00fa u\u1ed1n th\u1ee9 ba, c\u00e1c c\u1ea1nh \u0111\u00e3 t\u1ea1o h\u00ecnh tr\u01b0\u1edbc va v\u00e0o gi\u00e1 gi\u1eef dao n\u1ebfu c\u00f4ng nh\u00e2n kh\u00f4ng \u201cn\u00e2ng n\u1ed5i\u201d s\u1ea3n ph\u1ea9m \u1edf m\u1ed9t g\u00f3c nh\u1eb9. \u1ede c\u00fa u\u1ed1n th\u1ee9 t\u01b0, anh ta ph\u1ea3i \u1edf b\u00ean trong h\u00ecnh d\u1ea1ng, \u0111\u1ea7u ng\u00f3n tay c\u00e1ch vai khu\u00f4n ch\u01b0a \u0111\u1ebfn m\u1ed9t inch, v\u00ec \u0111\u00f3 l\u00e0 c\u00e1ch duy nh\u1ea5t \u0111\u1ec3 gi\u1eef cho c\u00e1c c\u1ea1nh vu\u00f4ng g\u00f3c.<\/p>\n\n\n\n

V\u0169 \u0111i\u1ec7u thay \u0111\u1ed5i \u1edf m\u1ed7i l\u1ea7n d\u1eadp.<\/p>\n\n\n\n

Trong tr\u00ecnh t\u1ef1 \u0111\u00f3, \u0111\u00f4i tay c\u00f4ng nh\u00e2n kh\u00f4ng \u0111\u1eb7t \u1edf v\u00f9ng an to\u00e0n chu\u1ea9n m\u1ef1c. Ch\u00fang tr\u01b0\u1ee3t, xoay, n\u00e2ng, v\u00e0 n\u1eafm l\u1ea1i trong kho\u1ea3ng c\u00e1ch v\u00e0i ph\u1ea7n inch v\u1edbi d\u1ee5ng c\u1ee5. N\u1ebfu b\u1ea1n g\u1eafn m\u1ed9t r\u00e8m s\u00e1ng C\u00e1ch khu\u00f4n 2\u20133 feet<\/strong> ra ngo\u00e0i v\u00ec c\u00f4ng th\u1ee9c th\u1eddi gian d\u1eebng n\u00f3i v\u1eady tr\u00ean m\u00e1y phanh c\u01a1 ch\u1eadm, b\u1ea1n v\u1eeba bu\u1ed9c anh ta ph\u1ea3i v\u1edbi qua kho\u1ea3ng tr\u1ed1ng tr\u01b0\u1edbc khi c\u00f3 th\u1ec3 ch\u1ea1m v\u00e0o s\u1ea3n ph\u1ea9m. \u0110\u1ed9ng t\u00e1c v\u1edbi \u0111\u00f3 tr\u1edf th\u00e0nh th\u00f3i quen. Vi\u1ec7c ph\u00e1 tia s\u00e1ng tr\u1edf th\u00e0nh li\u00ean t\u1ee5c. Vi\u1ec7c reset tr\u1edf th\u00e0nh ph\u1ea3n x\u1ea1 c\u01a1.<\/p>\n\n\n\n

V\u00e0 khi reset tr\u1edf th\u00e0nh \u0111\u1ed9ng t\u00e1c ch\u1eadm nh\u1ea5t trong chu k\u1ef3, anh ta s\u1ebd v\u00f4 hi\u1ec7u n\u00f3.<\/p>\n\n\n\n

Chi\u00eau l\u00e1ch ph\u1ed5 bi\u1ebfn nh\u1ea5t tr\u00ean c\u00e1c ch\u1eafn c\u1ed1 \u0111\u1ecbnh v\u1edbi c\u1eeda li\u00ean kh\u00f3a? M\u1ed9t nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm g\u1eafn l\u00ean c\u00f4ng t\u1eafc an to\u00e0n kh\u00f4ng ti\u1ebfp x\u00fac \u0111\u1ec3 gi\u1ea3 l\u1eadp \u0111i\u1ec1u ki\u1ec7n \u0111\u00f3ng. T\u00f4i \u0111\u00e3 g\u1ee1 kh\u00f4ng \u00edt c\u00e1i ra kh\u1ecfi t\u1ee7 \u0111i\u1ec7n. C\u00f4ng nh\u00e2n kh\u00f4ng xem m\u00ecnh l\u00e0 \u0111ang b\u1ecf qua an to\u00e0n. Anh ta xem m\u00ecnh l\u00e0 \u0111ang lo\u1ea1i b\u1ecf m\u1ed9t thi\u1ebft b\u1ecb kh\u00f4ng hi\u1ec3u \u0111i\u1ec7u nh\u1ea3y \u0111\u00f4i tay anh ta ph\u1ea3i th\u1ef1c hi\u1ec7n.<\/p>\n\n\n\n

\u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn m\u1ed9t c\u00e2u h\u1ecfi kh\u00f3 h\u01a1n: li\u1ec7u m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 m\u00e0 ch\u00fang ta g\u1ecdi l\u00e0 \u201can to\u00e0n h\u01a1n\u201d th\u1ef1c ra \u0111ang t\u1ea1o ra nh\u1eefng \u0111i\u1ec3m m\u00f9 m\u1edbi?<\/p>\n\n\n\n

C\u00e1c Ch\u1eafn C\u1ed1 \u0110\u1ecbnh C\u00f3 \u0110ang T\u1ea1o Nhi\u1ec1u \u0110i\u1ec3m M\u00f9 H\u01a1n L\u00e0 Ch\u00fang Kh\u1eafc Ph\u1ee5c?<\/h3>\n\n\n\n

Tr\u00ean c\u00e1c m\u00e1y phanh c\u01a1 ly h\u1ee3p ma s\u00e1t c\u0169 v\u1edbi th\u1eddi gian d\u1eebng d\u00e0i, b\u1ea1n kh\u00f4ng c\u00f3 \u0111\u1eb7c quy\u1ec1n \u0111\u1eb7t g\u1ea7n. V\u1eadt l\u00fd l\u00e0 v\u1eadt l\u00fd. N\u1ebfu piston m\u1ea5t 200 mili gi\u00e2y \u0111\u1ec3 d\u1eebng, kho\u1ea3ng c\u00e1ch an to\u00e0n t\u00ednh to\u00e1n s\u1ebd \u0111\u1ea9y r\u00e8m s\u00e1ng ra xa kh\u1ecfi khu\u00f4n. \u0110\u00f3 l\u00e0 l\u00fd do b\u1ea1n th\u1ea5y c\u00e1c l\u1eafp \u0111\u1eb7t n\u1eb1m C\u00e1ch khu\u00f4n 2\u20133 feet<\/strong> l\u00f9i.<\/p>\n\n\n\n

Tu\u00e2n th\u1ee7. V\u00e0 v\u00f4 l\u00fd v\u1ec1 m\u1eb7t c\u00f4ng th\u00e1i h\u1ecdc cho c\u00f4ng vi\u1ec7c ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 ki\u1ec3m tra m\u1ed9t nh\u00e0 m\u00e1y n\u01a1i m\u1ed7i thi\u1ebft l\u1eadp ph\u1ee9c t\u1ea1p \u0111\u1ec1u bu\u1ed9c c\u00f4ng nh\u00e2n ph\u1ea3i b\u01b0\u1edbc v\u00e0o b\u00ean trong r\u00e8m s\u00e1ng khi ch\u1ea1y ch\u1eadm v\u00ec r\u00e8m qu\u00e1 xa \u0111\u1ec3 cho ph\u00e9p c\u0103n ch\u1ec9nh s\u1ea3n ph\u1ea9m chu\u1ea9n. Gi\u1ea3i ph\u00e1p \u201ct\u1ea1m th\u1eddi\u201d l\u00e0 m\u1ed9t d\u00e2y n\u1ed1i t\u1eaft qua r\u01a1-le an to\u00e0n trong khi thi\u1ebft l\u1eadp. H\u1ecd gi\u1eef s\u1eb5n m\u1ed9t m\u1ea3nh d\u00e2y th\u00e9p 14 gauge \u0111\u00e3 tu\u1ed1t s\u1eb5n \u1edf ng\u0103n tr\u00ean c\u1ee7a t\u1ee7 \u0111i\u1ec1u khi\u1ec3n. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 n\u1ed5i lo\u1ea1n. \u0110\u00e2y l\u00e0 s\u1ef1 th\u00edch nghi.<\/p>\n\n\n\n

Gi\u1edd h\u00e3y so s\u00e1nh v\u1edbi c\u00e1c m\u00e1y phanh th\u1ee7y l\u1ef1c m\u1edbi h\u01a1n v\u1edbi van \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t v\u00e0 th\u1eddi gian d\u1eebng d\u01b0\u1edbi 30 mili gi\u00e2y<\/strong>. ANSI B11.3 cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb kho\u1ea3ng c\u00e1ch g\u1ea7n trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3. T\u00f4i \u0111\u00e3 th\u1ea5y h\u1ec7 th\u1ed1ng kho\u1ea3ng c\u00e1ch g\u1ea7n cho ph\u00e9p c\u00f4ng nh\u00e2n l\u00e0m vi\u1ec7c trong 4 mm<\/strong> ra kh\u1ecfi v\u00f9ng nguy hi\u1ec3m v\u1edbi t\u1ed1c \u0111\u1ed9 ti\u1ebfp c\u1eadn t\u1ed1i \u0111a, t\u1ef1 \u0111\u1ed9ng gi\u1ea3m t\u1ed1c khi c\u00fa \u0111\u1ea5m ti\u1ebfn g\u1ea7n v\u1eadt li\u1ec7u. Kh\u00f4ng c\u1ea7n v\u01b0\u01a1n tay xa. Kh\u00f4ng c\u00f3 chuy\u1ebfn \u0111i phi\u1ec1n ph\u1ee9c. Kh\u00f4ng c\u00f3 l\u00fd do \u0111\u1ec3 gian l\u1eadn.<\/p>\n\n\n\n

Quy tr\u00ecnh gi\u1ed1ng nhau. Ph\u00e9p to\u00e1n c\u00f4ng th\u00e1i h\u1ecdc kh\u00e1c nhau.<\/p>\n\n\n\n

C\u00e1c x\u01b0\u1edfng h\u00e0ng \u0111\u1ea7u ch\u1ee9ng minh \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 chuy\u1ec7n vi\u1ec3n v\u00f4ng. Nh\u1eefng c\u01a1 s\u1edf t\u00edch h\u1ee3p b\u1ea3o v\u1ec7 \u1edf kho\u1ea3ng c\u00e1ch g\u1ea7n, t\u1ef1 \u0111\u1ed9ng t\u1eaft trong c\u00e1c giai \u0111o\u1ea1n di chuy\u1ec3n an to\u00e0n, v\u00e0 \u0111o th\u1eddi gian d\u1eebng th\u1ef1c t\u1ebf th\u01b0\u1eddng \u0111\u1ea1t OEE cao h\u01a1n v\u00e0 t\u1ef7 l\u1ec7 ch\u1ea5n th\u01b0\u01a1ng th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c x\u01b0\u1edfng d\u00f9ng r\u00e8m b\u0103ng d\u00ednh v\u00e0 thanh c\u1ed1 \u0111\u1ecbnh. Khi bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 kh\u1edbp v\u1edbi chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a tay, s\u1ea3n xu\u1ea5t t\u0103ng l\u00ean. Khi n\u00f3 \u0111\u1ed1i kh\u00e1ng, s\u1ea3n xu\u1ea5t s\u1ebd t\u00ecm c\u00e1ch v\u01b0\u1ee3t qua.<\/p>\n\n\n\n

V\u1eady n\u1ebfu c\u00f4ng ngh\u1ec7 \u0111\u00e3 t\u1ed3n t\u1ea1i \u0111\u1ec3 gi\u1ea3m ma s\u00e1t, t\u1ea1i sao nhi\u1ec1u nh\u00e0 x\u01b0\u1edfng v\u1eabn hu\u1ea5n luy\u1ec7n c\u00f4ng nh\u00e2n \u0111\u1ec3 v\u00f4 hi\u1ec7u h\u00f3a nh\u1eefng thi\u1ebft b\u1ecb \u0111\u00e3 l\u1eafp \u0111\u1eb7t?<\/p>\n\n\n\n

\u00c1p l\u1ef1c s\u1ea3n xu\u1ea5t \u00e2m th\u1ea7m hu\u1ea5n luy\u1ec7n c\u00f4ng nh\u00e2n v\u00f4 hi\u1ec7u h\u00f3a thi\u1ebft b\u1ecb an to\u00e0n<\/h3>\n\n\n\n

H\u00e3y h\u00ecnh dung m\u1ed9t khu phanh c\u00f3 b\u1ea3ng tr\u1eafng theo d\u00f5i s\u1ea3n l\u01b0\u1ee3ng h\u00e0ng ng\u00e0y. Ch\u1ec9 ti\u00eau vi\u1ebft b\u1eb1ng m\u00e0u \u0111\u1ecf. Th\u1ef1c t\u1ebf b\u1eb1ng m\u00e0u \u0111en. L\u00fac 2:30 chi\u1ec1u, h\u1ecd \u0111ang b\u1ecb ch\u1eadm ti\u1ebfn \u0111\u1ed9.<\/p>\n\n\n\n

Ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111ang ch\u1ea1y nh\u1eefng l\u00f4 nh\u1ecf\u201440 s\u1ea3n ph\u1ea9m \u1edf \u0111\u00e2y, 60 \u1edf kia. M\u1ed7i l\u1ea7n thi\u1ebft l\u1eadp ph\u00e1 \u00e1nh s\u00e1ng r\u00e8m b\u1ea3o v\u1ec7 m\u01b0\u1eddi, m\u01b0\u1eddi l\u0103m l\u1ea7n khi anh \u1ea5y \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed3ng h\u1ed3 \u0111o v\u00e0 l\u1ef1c \u00e9p. M\u1ed7i l\u1ea7n gi\u00e1n \u0111o\u1ea1n m\u1ea5t kho\u1ea3ng 15 gi\u00e2y. V\u1edbi m\u1ed9t l\u00f4 60 s\u1ea3n ph\u1ea9m c\u00f3 nhi\u1ec1u l\u1ea7n \u00e9p, \u0111\u00f3 l\u00e0 th\u1eddi gian th\u1ef1c. M\u1ed9t gi\u1edd bi\u1ebfn m\u1ea5t trong ca l\u00e0m vi\u1ec7c.<\/p>\n\n\n\n

Kh\u00f4ng gi\u00e1m s\u00e1t n\u00e0o n\u00f3i, \u201cB\u1ecf qua b\u1ea3o v\u1ec7.\u201d H\u1ecd kh\u00f4ng c\u1ea7n ph\u1ea3i n\u00f3i. H\u1ec7 th\u1ed1ng t\u1ef1 n\u00f3i \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t tr\u01b0\u1edfng v\u1eadn h\u00e0nh h\u01b0\u1edbng d\u1eabn nh\u00e2n vi\u00ean m\u1edbi c\u00e1ch v\u00f4 hi\u1ec7u h\u00f3a m\u1ed9t r\u00e8m s\u00e1ng \u0111\u1eb7t sai v\u1ecb tr\u00ed b\u1eb1ng c\u00e1ch tr\u01b0\u1ee3t m\u1ed9t d\u1ea3i b\u00eca m\u1ecfng v\u00e0o v\u1ecf ph\u00e1t \u0111\u1ec3 c\u00e1c tia th\u1ea5p v\u1eabn \u0111\u01b0\u1ee3c n\u1ed1i. \u201cCh\u1ec9 trong l\u00fac thi\u1ebft l\u1eadp,\u201d anh ta n\u00f3i. \u0110\u1ebfn ngh\u1ec9 l\u1ea7n th\u1ee9 hai, n\u00f3 v\u1eabn \u1edf \u0111\u00f3. \u0110\u1ebfn th\u1ee9 S\u00e1u, \u0111\u00f3 th\u00e0nh th\u00f3i quen ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 hu\u1ea5n luy\u1ec7n.<\/p>\n\n\n\n

Ch\u00fang ta th\u1ef1c s\u1ef1 \u0111ang t\u00ednh to\u00e1n g\u00ec khi thi\u1ebft l\u1eadp nh\u1eefng h\u1ec7 th\u1ed1ng n\u00e0y? Kh\u00f4ng ch\u1ec9 kho\u1ea3ng c\u00e1ch d\u1eebng. Ch\u00fang ta \u0111ang t\u00ednh li\u1ec7u con \u0111\u01b0\u1eddng nhanh nh\u1ea5t \u0111\u1ec3 \u0111\u1ea1t ch\u1ec9 ti\u00eau \u0111i qua bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 hay v\u00f2ng qua n\u00f3. N\u1ebfu \u0111i v\u00f2ng ti\u1ebft ki\u1ec7m m\u01b0\u1eddi gi\u00e2y m\u1ed7i chu k\u1ef3, s\u00e0n s\u1ea3n xu\u1ea5t s\u1ebd ph\u00e1t hi\u1ec7n ra \u0111i\u1ec1u \u0111\u00f3 tr\u01b0\u1edbc l\u1ea7n ngh\u1ec9 \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 \u0111i\u1ec3m ma s\u00e1t: khi th\u1ef1c t\u1ebf c\u00f4ng th\u00e1i h\u1ecdc c\u1ee7a c\u00fa u\u1ed1n va ch\u1ea1m v\u1edbi th\u1ef1c t\u1ebf c\u01a1 h\u1ecdc c\u1ee7a bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 v\u00e0 th\u1ef1c t\u1ebf kinh t\u1ebf c\u1ee7a l\u1ecbch tr\u00ecnh. N\u1ebfu ba y\u1ebfu t\u1ed1 \u0111\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u00f9ng nhau, tr\u1ecdng l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t s\u1ebd \u00e1p \u0111\u1ea3o b\u1ed9 ki\u1ec3m so\u00e1t\u2014nh\u01b0 m\u1ed9t chi\u1ebfc xe t\u1ea3i ch\u1edf n\u1eb7ng v\u1edbi phanh nh\u1ecf xu\u1ed1ng d\u1ed1c.<\/p>\n\n\n\n

V\u1eady v\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i l\u00e0 li\u1ec7u c\u00f4ng nh\u00e2n c\u00f3 th\u00edch \u1ee9ng hay kh\u00f4ng.<\/p>\n\n\n\n

M\u00e0 l\u00e0 li\u1ec7u ch\u00fang ta \u0111\u00e3 s\u1eb5n s\u00e0ng thi\u1ebft k\u1ebf bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 th\u00edch \u1ee9ng tr\u01b0\u1edbc ch\u01b0a.<\/p>\n\n\n\n

V\u01b0\u1ee3t qua r\u00e0o c\u1ea3n \u0111\u01a1n l\u1ebb: Thi\u1ebft k\u1ebf chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 nhi\u1ec1u l\u1edbp<\/h2>\n\n\n\n

M\u1ed9t t\u1ea5m th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao 10 mm b\u1ecb t\u00e1ch gi\u1eefa l\u00fac u\u1ed1n tr\u00ean m\u1ed9t phanh th\u1ee7y l\u1ef1c m\u00e0 t\u00f4i xem x\u00e9t sau s\u1ef1 vi\u1ec7c. G\u00e3y gi\u00f2n. N\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i \u0111\u01b0\u1ee3c t\u00edch tr\u1eef bi\u1ebfn n\u1eeda t\u1ea5m \u0111\u00f3 th\u00e0nh m\u1ed9t c\u00e1i x\u1ebbng th\u00e9p di chuy\u1ec3n nhanh h\u01a1n t\u1ed1c \u0111\u1ed9 ch\u1edbp m\u1eaft c\u1ee7a con ng\u01b0\u1eddi. N\u00f3 v\u01b0\u1ee3t qua ph\u1ea7n tr\u01b0\u1edbc c\u1ee7a m\u00e1y v\u00e0 \u0111\u00e1nh v\u00e0o ng\u1ef1c ng\u01b0\u1eddi v\u1eadn h\u00e0nh tr\u01b0\u1edbc khi ai hi\u1ec3u chuy\u1ec7n g\u00ec \u0111ang x\u1ea3y ra. C\u00f3 r\u00e8m \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t. N\u00f3 \u0111\u01b0\u1ee3c g\u1eafn \u1edf kho\u1ea3ng c\u00e1ch an to\u00e0n t\u00ednh to\u00e1n theo C\u00e1ch khu\u00f4n 2\u20133 feet<\/strong> theo ti\u00eau chu\u1ea9n ANSI B11 v\u00e0 c\u00f4ng th\u1ee9c th\u1eddi gian d\u1eebng. Ho\u00e0n to\u00e0n tu\u00e2n th\u1ee7.<\/p>\n\n\n\n

\u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng thay \u0111\u1ed5i g\u00ec.<\/p>\n\n\n\n

Tia s\u00e1ng ch\u01b0a bao gi\u1edd b\u1ecb ph\u00e1 v\u00ec tay anh ta kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed1i nguy. Chi ti\u1ebft gia c\u00f4ng m\u1edbi l\u00e0.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u1ed7 h\u1ed5ng trong t\u01b0 duy m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t. N\u1ebfu chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 duy nh\u1ea5t c\u1ee7a b\u1ea1n l\u00e0 \u201c\u0111\u1eebng \u0111\u1ec3 tay v\u00e0o v\u00f9ng nguy hi\u1ec3m,\u201d b\u1ea1n \u0111\u00e3 b\u1ecf qua h\u1ecfng d\u1ee5ng c\u1ee5, h\u00e0nh vi v\u1eadt li\u1ec7u v\u00e0 tr\u1ecdng l\u1ef1c. Ch\u00fang ta th\u1ef1c s\u1ef1 \u0111ang t\u00ednh to\u00e1n g\u00ec khi thi\u1ebft l\u1eadp nh\u1eefng h\u1ec7 th\u1ed1ng n\u00e0y? Kh\u00f4ng ch\u1ec9 kho\u1ea3ng c\u00e1ch d\u1eebng \u2014 ch\u00fang ta \u0111ang t\u00ednh bao nhi\u00eau c\u00e1ch kh\u00e1c nhau m\u00e0 n\u0103ng l\u01b0\u1ee3ng c\u00f3 th\u1ec3 ch\u1ea1m t\u1edbi c\u01a1 th\u1ec3 khi c\u1ea7n \u00e9p xu\u1ed1ng.<\/p>\n\n\n\n

Vi\u1ec7c ph\u00e2n t\u1ea7ng c\u00f3 ngh\u0129a l\u00e0 th\u1ebf n\u00e0y: kh\u00f4ng m\u1ed9t thi\u1ebft b\u1ecb n\u00e0o b\u1ecb \u0111\u00e1nh b\u1ea1i ho\u1eb7c b\u1ecb v\u01b0\u1ee3t m\u1eb7t s\u1ebd \u0111\u1ec3 l\u1ed9 \u0111i\u1ec3m v\u1eadn h\u00e0nh. Thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n x\u1eed l\u00fd vi\u1ec7c x\u00e2m nh\u1eadp c\u1ee7a tay. R\u00e0o ch\u1eafn v\u1eadt l\u00fd x\u1eed l\u00fd vi\u1ec7c b\u1eafn ra v\u00e0 qu\u1ea5t. Logic \u0111i\u1ec1u khi\u1ec3n bu\u1ed9c ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u1ea3i tham gia. M\u1ed7i l\u1edbp bao ph\u1ee7 nh\u1eefng \u0111i\u1ec3m m\u00f9 c\u1ee7a l\u1edbp kh\u00e1c.<\/p>\n\n\n\n

N\u1ebfu m\u1ed9t l\u1edbp th\u1ea5t b\u1ea1i \u2014 ho\u1eb7c b\u1ecb gian l\u1eadn \u2014 c\u00e1c l\u1edbp kh\u00e1c v\u1eabn \u0111\u1ee9ng v\u1eefng.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 c\u00e1ch b\u1ea3o v\u1ec7 tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0o khi n\u00f3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean chuy\u1ec3n \u0111\u1ed9ng v\u00e0 v\u1eadt l\u00fd thay v\u00ec gi\u1ea5y t\u1edd.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb C\u1ea3m bi\u1ebfn Hi\u1ec7n di\u1ec7n (PSD) so v\u1edbi R\u00e8m \u00e1nh s\u00e1ng: Lo\u1ea1i n\u00e0o th\u1ef1c s\u1ef1 ph\u00f9 h\u1ee3p v\u1edbi h\u1ed3 s\u01a1 u\u1ed1n c\u1ee7a b\u1ea1n?<\/h3>\n\n\n\n

T\u00f4i \u0111\u00e3 \u0111i\u1ec1u tra m\u1ed9t v\u1ee5 c\u1eaft c\u1ee5t do m\u00e1y \u00e9p c\u01a1 kh\u00ed g\u00e2y ra, n\u01a1i ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u00e3 \u201c\u0111\u1eb7t\u201d m\u1ed9t d\u1ea3i shim v\u00e0o k\u00eanh r\u00e8m \u00e1nh s\u00e1ng d\u01b0\u1edbi \u0111\u1ec3 c\u00e1c tia d\u01b0\u1edbi lu\u00f4n k\u00edn. R\u00e8m \u0111\u01b0\u1ee3c \u0111\u1eb7t C\u00e1ch khu\u00f4n 2\u20133 feet<\/strong> ra ngo\u00e0i v\u00ec th\u1eddi gian d\u1eebng \u0111o \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u0111i\u1ec1u \u0111\u00f3. \u0110\u1ec3 c\u0103n ch\u1ec9nh c\u00e1c gi\u00e1 \u0111\u1ee1 nh\u1ecf, anh ta ph\u1ea3i li\u00ean t\u1ee5c nghi\u00eang v\u00e0o trong v\u00f9ng. Th\u1eddi gian reset l\u00e0m ch\u1eadm chu k\u1ef3. V\u00ec v\u1eady, anh ta \u0111\u00e3 \u0111\u00e1nh b\u1ea1i thi\u1ebft b\u1ecb m\u1ed9t c\u00e1ch s\u1ea1ch nh\u1ea5t c\u00f3 th\u1ec3: ch\u1eb7n c\u00e1c tia d\u01b0\u1edbi v\u0129nh vi\u1ec5n v\u00e0 l\u00e0m vi\u1ec7c ph\u00eda tr\u00ean ch\u00fang.<\/p>\n\n\n\n

H\u1ecd kh\u00f4ng h\u1ec1 che gi\u1ea5u \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n

D\u1eef li\u1ec7u OSHA cho th\u1ea5y g\u1ea7n m\u1ed9t n\u1eeda c\u00e1c ch\u1ea5n th\u01b0\u01a1ng do m\u00e1y \u00e9p c\u01a1 kh\u00ed k\u1ebft th\u00fac b\u1eb1ng vi\u1ec7c c\u1eaft c\u1ee5t. \u0110\u00f3 kh\u00f4ng ph\u1ea3i chuy\u1ec7n t\u1ea7m th\u01b0\u1eddng. \u0110\u00f3 l\u00e0 \u0111i\u1ec1u x\u1ea3y ra khi th\u1eddi gian d\u1eebng v\u00e0 kho\u1ea3ng c\u00e1ch an to\u00e0n \u0111\u1ea9y thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n \u0111\u1ee7 xa \u0111\u1ec3 ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u1ea3i ch\u1ecdn gi\u1eefa t\u1ea7m v\u1edbi v\u00e0 nh\u1ecbp l\u00e0m vi\u1ec7c.<\/p>\n\n\n\n

Gi\u1edd h\u00e3y so s\u00e1nh v\u1edbi m\u1ed9t m\u00e1y \u00e9p th\u1ee7y l\u1ef1c hi\u1ec7n \u0111\u1ea1i v\u1edbi th\u1eddi gian d\u1eebng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn l\u00e0 30 ms v\u00e0 c\u00f3 van \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t. ANSI B11 cho ph\u00e9p c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n g\u1ea7n trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y. T\u00f4i \u0111\u00e3 th\u1ea5y h\u1ec7 th\u1ed1ng cho ph\u00e9p ng\u01b0\u1eddi v\u1eadn h\u00e0nh l\u00e0m vi\u1ec7c trong 4 mm<\/strong> g\u1ea7n d\u1ee5ng c\u1ee5 trong l\u00fac ti\u1ebfp c\u1eadn nhanh, t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n sang t\u1ed1c \u0111\u1ed9 ch\u1eadm g\u1ea7n c\u00e1c \u0111i\u1ec3m t\u1eaft c\u1ea3m bi\u1ebfn. Kh\u00f4ng t\u1ea7m v\u1edbi d\u00e0i. Kh\u00f4ng ng\u1eaft qu\u00e3ng phi\u1ec1n to\u00e1i. Kh\u00f4ng c\u00f3 \u0111\u1ed9ng c\u01a1 \u0111\u1ec3 nh\u00e9t kim lo\u1ea1i v\u00e0o k\u00eanh nh\u1eadn.<\/p>\n\n\n\n

C\u00f9ng kh\u00e1i ni\u1ec7m \u2014 c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 c\u00f4ng th\u00e1i h\u1ecdc kh\u00e1c bi\u1ec7t.<\/p>\n\n\n\n

C\u00e2u h\u1ecfi kh\u00f4ng ph\u1ea3i l\u00e0 \u201cr\u00e8m \u00e1nh s\u00e1ng hay c\u1ea3m bi\u1ebfn laser PSD?\u201d M\u00e0 l\u00e0: h\u1ed3 s\u01a1 u\u1ed1n c\u1ee7a b\u1ea1n c\u00f3 y\u00eau c\u1ea7u gi\u1eef ph\u1ea7n b\u1eb1ng tay trong kho\u1ea3ng v\u00e0i inch so v\u1edbi khu\u00f4n kh\u00f4ng? C\u00e1c g\u1edd d\u00e0i b\u1ecb ch\u00f9ng? B\u1ed9 ph\u1eadn d\u1ea1ng h\u1ed9p gi\u1eef tay b\u00ean trong h\u00ecnh kh\u1ed1i? N\u1ebfu c\u00f3, m\u1ed9t r\u00e8m \u1edf xa s\u1ebd t\u1ea1o ra gi\u00e1n \u0111o\u1ea1n li\u00ean t\u1ee5c, v\u00e0 c\u00e1ch gian l\u1eadn ch\u00ednh x\u00e1c s\u1ebd l\u00e0 ho\u1eb7c m\u1ed9t shim trong b\u1ed9 ph\u00e1t, ho\u1eb7c b\u0103ng gi\u1ea5y che c\u00e1c tia d\u01b0\u1edbi, ho\u1eb7c d\u00e2y n\u1ed1i t\u1eaft qua r\u01a1-le an to\u00e0n trong khi c\u00e0i \u0111\u1eb7t.<\/p>\n\n\n\n

N\u1ebfu th\u1eddi gian d\u1eebng bu\u1ed9c kho\u1ea3ng c\u00e1ch, v\u00e0 kho\u1ea3ng c\u00e1ch bu\u1ed9c t\u1ea7m v\u1edbi, v\u00e0 t\u1ea7m v\u1edbi bu\u1ed9c ph\u1ea3i bypass \u2014 thi\u1ebft b\u1ecb \u0111\u00f3 l\u00e0 sai cho h\u1ed3 s\u01a1.<\/p>\n\n\n\n

V\u1eady khi n\u00e0o m\u1ed9t tia s\u00e1ng l\u00e0 kh\u00f4ng \u0111\u1ee7?<\/p>\n\n\n\n

Ch\u1ee7 \u0111\u1ec1<\/th>Chi ti\u1ebft<\/th><\/tr><\/thead>
Ti\u00eau \u0111\u1ec1<\/td>Thi\u1ebft b\u1ecb C\u1ea3m bi\u1ebfn Hi\u1ec7n di\u1ec7n (PSD) so v\u1edbi R\u00e8m \u00e1nh s\u00e1ng: Lo\u1ea1i n\u00e0o th\u1ef1c s\u1ef1 ph\u00f9 h\u1ee3p v\u1edbi h\u1ed3 s\u01a1 u\u1ed1n c\u1ee7a b\u1ea1n?<\/td><\/tr>
S\u1ef1 c\u1ed1 Th\u1ef1c t\u1ebf<\/td>Ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u00e3 bypass r\u00e8m \u00e1nh s\u00e1ng tr\u00ean m\u00e1y \u00e9p c\u01a1 kh\u00ed b\u1eb1ng c\u00e1ch \u0111\u1eb7t shim v\u00e0o k\u00eanh d\u01b0\u1edbi \u0111\u1ec3 c\u00e1c tia lu\u00f4n k\u00edn. R\u00e8m \u0111\u01b0\u1ee3c \u0111\u1eb7t c\u00e1ch 2\u20133 feet do kho\u1ea3ng c\u00e1ch an to\u00e0n y\u00eau c\u1ea7u. \u0110\u1ec3 c\u0103n ch\u1ec9nh c\u00e1c gi\u00e1 \u0111\u1ee1 nh\u1ecf, ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u1ea3i li\u00ean t\u1ee5c nghi\u00eang v\u00e0o v\u00f9ng, l\u00e0m ch\u1eadm th\u1eddi gian chu k\u1ef3 v\u00e0 d\u1eabn \u0111\u1ebfn vi\u1ec7c c\u1ed1 \u00fd v\u00f4 hi\u1ec7u h\u00f3a thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7.<\/td><\/tr>
D\u1eef li\u1ec7u OSHA<\/td>G\u1ea7n m\u1ed9t n\u1eeda c\u00e1c ch\u1ea5n th\u01b0\u01a1ng do m\u00e1y \u00e9p c\u01a1 kh\u00ed d\u1eabn \u0111\u1ebfn c\u1eaft c\u1ee5t, th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 th\u1eddi gian d\u1eebng v\u00e0 kho\u1ea3ng c\u00e1ch an to\u00e0n khi\u1ebfn thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n b\u1ecb \u0111\u1eb7t qu\u00e1 xa \u0111i\u1ec3m nguy hi\u1ec3m.<\/td><\/tr>
V\u1ea5n \u0111\u1ec1 C\u1ed1t l\u00f5i<\/td>Khi th\u1eddi gian d\u1eebng y\u00eau c\u1ea7u t\u0103ng kho\u1ea3ng c\u00e1ch an to\u00e0n, ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u1ea3i ch\u1ecdn gi\u1eefa t\u1ea7m v\u1edbi v\u00e0 n\u0103ng su\u1ea5t, l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng bypass thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7.<\/td><\/tr>
So s\u00e1nh phanh th\u1ee7y l\u1ef1c<\/td>C\u00e1c m\u00e1y phanh th\u1ee7y l\u1ef1c hi\u1ec7n \u0111\u1ea1i v\u1edbi th\u1eddi gian d\u1eebng \u0111\u01b0\u1ee3c x\u00e1c minh l\u00e0 30 ms v\u00e0 van \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t cho ph\u00e9p c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n g\u1ea7n theo ti\u00eau chu\u1ea9n ANSI B11. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c trong ph\u1ea1m vi 4 mm c\u1ee7a d\u1ee5ng c\u1ee5 trong khi ti\u1ebfp c\u1eadn nhanh, v\u1edbi s\u1ef1 chuy\u1ec3n t\u1ef1 \u0111\u1ed9ng sang t\u1ed1c \u0111\u1ed9 ch\u1eadm g\u1ea7n \u0111i\u1ec3m t\u1eaft c\u1ea3m bi\u1ebfn.<\/td><\/tr>
Kh\u00e1c bi\u1ec7t v\u1ec1 c\u00f4ng th\u00e1i h\u1ecdc<\/td>C\u1ea3 hai h\u1ec7 th\u1ed1ng \u0111\u1ec1u s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n, nh\u01b0ng h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c cho ph\u00e9p l\u00e0m vi\u1ec7c g\u1ea7n, li\u00ean t\u1ee5c m\u00e0 kh\u00f4ng c\u1ea7n v\u1edbi xa, kh\u00f4ng b\u1ecb ng\u1eaft qu\u00e3ng g\u00e2y phi\u1ec1n, ho\u1eb7c kh\u00f4ng c\u00f3 \u0111\u1ed9ng c\u01a1 v\u01b0\u1ee3t qua thi\u1ebft b\u1ecb an to\u00e0n.<\/td><\/tr>
C\u00e2u h\u1ecfi then ch\u1ed1t<\/td>Kh\u00f4ng ph\u1ea3i \u201cr\u00e8m \u00e1nh s\u00e1ng hay PSD laser?\u201d m\u00e0 l\u00e0 li\u1ec7u h\u1ed3 s\u01a1 u\u1ed1n c\u00f3 y\u00eau c\u1ea7u h\u1ed7 tr\u1ee3 c\u1ea7m tay g\u1ea7n khu\u00f4n hay kh\u00f4ng.<\/td><\/tr>
\u1ee8ng d\u1ee5ng r\u1ee7i ro cao<\/td>C\u00e1c g\u1edd d\u00e0i b\u1ecb x\u1ec7, ph\u1ea7n h\u1ed9p k\u1eb9p tay, ho\u1eb7c thao t\u00e1c y\u00eau c\u1ea7u tay \u1edf trong v\u00e0i inch c\u1ee7a d\u1ee5ng c\u1ee5 t\u1ea1o ra nhi\u1ec1u l\u1ea7n gi\u00e1n \u0111o\u1ea1n v\u1edbi r\u00e8m \u00e1nh s\u00e1ng xa.<\/td><\/tr>
Ph\u01b0\u01a1ng ph\u00e1p v\u01b0\u1ee3t qua th\u01b0\u1eddng g\u1eb7p<\/td>Ch\u00e8n shim v\u00e0o b\u1ed9 ph\u00e1t, b\u00eca c\u1ee9ng che ch\u00f9m tia d\u01b0\u1edbi, ho\u1eb7c d\u00e2y n\u1ed1i qua r\u01a1-le an to\u00e0n trong qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t.<\/td><\/tr>
Nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i<\/td>N\u1ebfu th\u1eddi gian d\u1eebng bu\u1ed9c ph\u1ea3i c\u00f3 kho\u1ea3ng c\u00e1ch, kho\u1ea3ng c\u00e1ch bu\u1ed9c ph\u1ea3i v\u01b0\u01a1n tay, v\u00e0 v\u01b0\u01a1n tay bu\u1ed9c ph\u1ea3i v\u01b0\u1ee3t qua \u2014 th\u00ec thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 l\u00e0 sai cho h\u1ed3 s\u01a1 u\u1ed1n.<\/td><\/tr>
C\u00e2u h\u1ecfi trung t\u00e2m<\/td>Khi n\u00e0o ch\u00f9m tia l\u00e0 ch\u01b0a \u0111\u1ee7?<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Khi n\u00e0o m\u1ed9t r\u00e0o ch\u1eafn v\u1eadt l\u00fd l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng?<\/h3>\n\n\n\n

M\u1ed9t m\u00e1y phanh d\u00e0i 12 foot \u0111ang ch\u1ea1y k\u00eanh n\u1eb7ng \u0111\u00e3 n\u00e9m m\u1ed9t ch\u00e2n \u0111\u00e3 u\u1ed1n l\u00ean khi ch\u00e0y nh\u1ea5c kh\u1ecfi. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111ang c\u1ea7m tay g\u1ea7n vai khu\u00f4n. Ph\u1ea7n \u0111\u00f3 qu\u1eadt nh\u01b0 t\u1ea5m v\u00e1n v\u00e0 nghi\u1ec1n n\u00e1t ba ng\u00f3n tay v\u00e0o gi\u00e1 gi\u1eef ch\u00e0y. C\u00f3 m\u1ed9t r\u00e8m \u00e1nh s\u00e1ng. Tay anh \u1ea5y v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt \u1edf ngo\u00e0i v\u00f9ng khi s\u1ef1 qu\u1eadt x\u1ea3y ra.<\/p>\n\n\n\n

Nguy hi\u1ec3m kh\u00f4ng ph\u1ea3i l\u00e0 x\u00e2m nh\u1eadp. M\u00e0 l\u00e0 ph\u1ea3n \u1ee9ng.<\/p>\n\n\n\n

B\u1ea5t c\u1ee9 khi n\u00e0o b\u1ea1n u\u1ed1n t\u1ea5m d\u00e0y, v\u1eadt li\u1ec7u \u0111\u1ed9 b\u1ec1n cao, khe khu\u00f4n h\u1eb9p, ho\u1eb7c c\u00e1c ph\u1ea7n c\u00f3 m\u00f4-men xo\u1eafn t\u00edch tr\u1eef, b\u1ea1n c\u00f3 kh\u1ea3 n\u0103ng c\u00f3 v\u1eadt b\u1eafn ho\u1eb7c qu\u1eadt. \u0110\u00f3 l\u00e0 l\u00fac m\u1ed9t r\u00e0o ch\u1eafn v\u1eadt l\u00fd \u2014 c\u1ed1 \u0111\u1ecbnh ho\u1eb7c li\u00ean kh\u00f3a \u2014 tr\u1edf th\u00e0nh \u0111i\u1ec1u kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng. Kh\u00f4ng ph\u1ea3i v\u00ec tu\u00e2n th\u1ee7. M\u00e0 v\u00ec ng\u0103n ch\u1eb7n.<\/p>\n\n\n\n

Nh\u01b0ng \u0111\u00e2y l\u00e0 c\u00e1i b\u1eaby m\u00e0 Rockford v\u00e0 nh\u1eefng ng\u01b0\u1eddi kh\u00e1c \u0111\u00e3 ghi nh\u1eadn: c\u1eeda c\u1ed1 \u0111\u1ecbnh li\u00ean kh\u00f3a k\u1ebft h\u1ee3p v\u1edbi \u0111i\u1ec1u khi\u1ec3n hai tay th\u01b0\u1eddng th\u1ea5t b\u1ea1i tr\u00ean m\u00e1y phanh v\u00ec ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u1ea3i h\u1ed7 tr\u1ee3 ph\u1ea7n b\u1eb1ng tay. N\u1ebfu r\u00e0o ch\u1eafn ch\u1eb7n chuy\u1ec3n \u0111\u1ed9ng \u0111\u00f3, h\u1ecd s\u1ebd \u0111\u00e1nh b\u1ea1i li\u00ean kh\u00f3a b\u1eb1ng nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm tr\u00ean c\u00f4ng t\u1eafc m\u00e3 h\u00f3a ho\u1eb7c d\u00e1n b\u1ed9 k\u00edch ho\u1ea1t \u0111\u1ec3 gi\u1ea3 \u0111i\u1ec1u ki\u1ec7n \u0111\u00f3ng.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 g\u1ee1 nam ch\u00e2m kh\u1ecfi h\u01a1n m\u1ed9t c\u1eeda b\u1ea3o v\u1ec7.<\/p>\n\n\n\n

V\u00ec v\u1eady r\u00e0o ch\u1eafn ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 di chuy\u1ec3n nh\u01b0ng c\u01a1 th\u1ec3 kh\u00f4ng th\u1ec3. T\u1ea5m ch\u1eafn b\u00ean cho l\u1ed1i ph\u00f3ng. B\u1ea3o v\u1ec7 ph\u00eda sau cho v\u00f9ng b\u00e0n g\u00e1. M\u00e0n h\u00ecnh tr\u01b0\u1edbc \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c ch\u1eb7n c\u00e1c h\u01b0\u1edbng ph\u00f3ng nh\u01b0ng v\u1eabn \u0111\u1ec3 l\u1ed1i tay ti\u1ebfp c\u1eadn ph\u1ed1i h\u1ee3p v\u1edbi c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n.<\/p>\n\n\n\n

R\u00e0o ch\u1eafn cho th\u00e9p bay. C\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n cho nh\u1eefng b\u00e0n tay l\u1ea1c h\u01b0\u1edbng.<\/p>\n\n\n\n

Nh\u1eefng l\u1edbp kh\u00e1c nhau. Nh\u1eefng nhi\u1ec7m v\u1ee5 kh\u00e1c nhau.<\/p>\n\n\n\n

\u0110i\u1ec1u \u0111\u00f3 \u0111\u1ec3 l\u1ea1i m\u1ed9t m\u1eaft x\u00edch y\u1ebfu n\u1eefa: s\u1ef1 kh\u1edfi \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ch\u00ednh ng\u01b0\u1eddi v\u1eadn h\u00e0nh.<\/p>\n\n\n\n

T\u00edch h\u1ee3p \u0111i\u1ec1u khi\u1ec3n hai tay \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ng\u01b0\u1eddi v\u1eadn h\u00e0nh tham gia ch\u1ee7 \u0111\u1ed9ng<\/h3>\n\n\n\n

Nhi\u1ec1u n\u0103m tr\u01b0\u1edbc, t\u00f4i \u0111\u00e3 th\u1ea5y m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n hai tay b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a b\u1eb1ng m\u1ed9t c\u00e1i k\u1eb9p ch\u1eef C d\u00e0i 3 inch. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh k\u1eb9p ch\u1eb7t m\u1ed9t n\u00fat b\u1ea5m l\u00f2ng b\u00e0n tay v\u00e0 \u0111i\u1ec1u khi\u1ec3n n\u00fat c\u00f2n l\u1ea1i b\u1eb1ng tay t\u1ef1 do trong khi gi\u1eef m\u1ed9t t\u1ea5m ph\u00f4i h\u1eb9p g\u1ea7n khu\u00f4n. Th\u1eddi gian ch\u1ed1ng k\u1eb9t c\u0169 k\u1ef9 v\u00e0 l\u1ecfng l\u1ebbo. Th\u1eddi gian chu k\u1ef3 quan tr\u1ecdng h\u01a1n s\u1ef1 \u0111\u1ed1i x\u1ee9ng.<\/p>\n\n\n\n

\u0110i\u1ec1u khi\u1ec3n hai tay kh\u00f4ng nh\u1eb1m m\u1ee5c \u0111\u00edch gi\u1eef cho tay b\u1eadn r\u1ed9n. N\u00f3 nh\u1eb1m bu\u1ed9c s\u1ef1 tham gia c\u00f3 \u00fd th\u1ee9c tr\u01b0\u1edbc khi thanh tr\u01b0\u1ee3t di chuy\u1ec3n. C\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n hi\u1ec7n \u0111\u1ea1i y\u00eau c\u1ea7u k\u00edch ho\u1ea1t \u0111\u1ed3ng th\u1eddi trong ph\u1ea7n nh\u1ecf c\u1ee7a gi\u00e2y v\u00e0 nh\u1ea3 ra gi\u1eefa c\u00e1c chu k\u1ef3. N\u1ebfu \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang, ch\u00fang ng\u0103n ch\u1eb7n h\u00e0nh vi \u201cm\u1ed9t tay v\u00e0 v\u1edbi ra\u201d trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng nh\u1ea5n \u0111\u01a1n.<\/p>\n\n\n\n

Nh\u01b0ng tr\u00ean m\u1ed9t m\u00e1y u\u1ed1n ch\u1ea1y c\u00e1c chu\u1ed7i u\u1ed1n \u0111a d\u1ea1ng, ch\u1ec9 s\u1eed d\u1ee5ng \u0111i\u1ec1u khi\u1ec3n hai tay th\u01b0\u1eddng kh\u00f4ng kh\u1ea3 thi cho c\u00e1c chi ti\u1ebft s\u1ea3n xu\u1ea5t c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ee1. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u1edbi c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n v\u00e0 logic \u0111i\u1ec1u khi\u1ec3n \u2014 v\u00ed d\u1ee5:<\/p>\n\n\n\n

    \n
  • Y\u00eau c\u1ea7u \u0111i\u1ec1u khi\u1ec3n hai tay trong qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp v\u00e0 th\u1eed nghi\u1ec7m.<\/li>\n\n\n\n
  • T\u1ef1 \u0111\u1ed9ng chuy\u1ec3n sang \u0111i\u1ec1u khi\u1ec3n b\u00e0n \u0111\u1ea1p c\u00f3 b\u1ea3o v\u1ec7 khi h\u1ec7 th\u1ed1ng PSD x\u00e1c nh\u1eadn v\u1ecb tr\u00ed tay an to\u00e0n.<\/li>\n\n\n\n
  • M\u1ea1ch ch\u1ed1ng l\u1eb7p l\u1ea1i v\u00e0 m\u1ea1ch d\u1eebng \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t \u0111\u1ec3 kh\u00f4ng c\u00f3 h\u01b0 h\u1ecfng r\u01a1-le \u0111\u01a1n n\u00e0o g\u00e2y ra chuy\u1ec3n \u0111\u1ed9ng ngo\u00e0i \u00fd mu\u1ed1n.<\/li>\n<\/ul>\n\n\n\n

    N\u1ebfu b\u1ea1n l\u1eafp \u0111\u1eb7t \u0111i\u1ec1u khi\u1ec3n hai tay m\u00e0 kh\u00f4ng t\u00edch h\u1ee3p v\u00e0o logic chu tr\u00ecnh th\u1ef1c t\u1ebf, vi\u1ec7c gian l\u1eadn s\u1ebd r\u1ea5t \u0111\u01a1n gi\u1ea3n: k\u1eb9p, d\u00e1n ho\u1eb7c ch\u00e8n n\u00eam m\u1ed9t n\u00fat v\u00e0 \u0111i\u1ec1u khi\u1ec3n n\u00fat c\u00f2n l\u1ea1i.<\/p>\n\n\n\n

    N\u1ebfu \u0111\u01b0\u1ee3c ph\u00e2n t\u1ea7ng \u0111\u00fang c\u00e1ch, \u0111i\u1ec1u khi\u1ec3n hai tay bu\u1ed9c vi\u1ec7c kh\u1edfi \u0111\u1ed9ng c\u00f3 ch\u1ee7 \u0111\u00edch khi r\u1ee7i ro cao nh\u1ea5t \u2014 trong kh\u1edfi t\u1ea1o, \u0111i\u1ec1u ch\u1ec9nh, x\u1eed l\u00fd s\u1ef1 c\u1ed1 \u2014 trong khi c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n qu\u1ea3n l\u00fd chuy\u1ec3n \u0111\u1ed9ng tay linh ho\u1ea1t trong qu\u00e1 tr\u00ecnh u\u1ed1n s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

    B\u00e2y gi\u1edd h\u00e3y l\u00f9i l\u1ea1i m\u1ed9t b\u01b0\u1edbc.<\/p>\n\n\n\n

    C\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n b\u1ea3o v\u1ec7 kh\u00f4ng gian. R\u00e0o ch\u1eafn ch\u1ee9a \u0111\u1ef1ng n\u0103ng l\u01b0\u1ee3ng. \u0110i\u1ec1u khi\u1ec3n hai tay \u0111i\u1ec1u ch\u1ec9nh \u00fd \u0111\u1ecbnh.<\/p>\n\n\n\n

    B\u1ecf \u0111i b\u1ea5t k\u1ef3 c\u00e1i n\u00e0o, v\u00e0 m\u1ed9t \u0111\u01b0\u1eddng t\u1eaft ho\u1eb7c h\u1ecfng h\u00f3c c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ed9 da th\u1ecbt v\u1edbi l\u1ef1c. K\u1ebft h\u1ee3p \u0111\u00fang c\u00e1ch, v\u00e0 vi\u1ec7c v\u00f4 hi\u1ec7u h\u00f3a m\u1ed9t l\u1edbp v\u1eabn \u0111\u1ec3 l\u1ea1i c\u00e1c l\u1edbp b\u1ea3o v\u1ec7 kh\u00e1c ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

    \u0110\u00f3 ch\u00ednh l\u00e0 c\u00e1ch h\u1ec7 th\u1ed1ng phanh c\u1ee7a m\u1ed9t chi\u1ebfc xe t\u1ea3i ch\u1edf h\u00e0ng ho\u1ea1t \u0111\u1ed9ng: phanh ch\u00ednh, phanh b\u1eb1ng \u0111\u1ed9ng c\u01a1, h\u1ec7 th\u1ed1ng kh\u00ed n\u00e9n, \u0111\u1ea7u v\u00e0o c\u1ee7a ng\u01b0\u1eddi l\u00e1i \u2014 t\u1ea5t c\u1ea3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chung \u0111\u1ec3 tr\u1ecdng l\u1ef1c v\u00e0 t\u1ea3i tr\u1ecdng kh\u00f4ng quy\u1ebft \u0111\u1ecbnh k\u1ebft qu\u1ea3.<\/p>\n\n\n\n

    V\u1ea5n \u0111\u1ec1 ti\u1ebfp theo kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ecdn c\u00e1c l\u1edbp.<\/p>\n\n\n\n

    M\u00e0 l\u00e0 c\u1ea5u h\u00ecnh th\u1eddi gian, ch\u1ebf \u0111\u1ed9 t\u1eaft t\u1ea1m th\u1eddi v\u00e0 t\u00edch h\u1ee3p \u0111i\u1ec1u khi\u1ec3n c\u1ee7a ch\u00fang sao cho s\u1ea3n xu\u1ea5t kh\u00f4ng th\u1ec3 \u00e2m th\u1ea7m \u0111\u1ea5u n\u1ed1i l\u1ea1i ch\u00fang th\u00e0nh m\u1ed9t \u0111i\u1ec3m h\u1ecfng duy nh\u1ea5t.<\/p>\n\n\n\n

    C\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng sao cho an to\u00e0n nhanh h\u01a1n gian l\u1eadn<\/h2>\n\n\n\n

    V\u00e0i n\u0103m tr\u01b0\u1edbc, t\u00f4i ki\u1ec3m tra m\u1ed9t m\u00e1y u\u1ed1n \u201cc\u00f3 \u0111\u1ea7y \u0111\u1ee7 m\u1ecdi th\u1ee9 c\u1ea7n thi\u1ebft\u201d \u2014 c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n laser, t\u1eaft t\u1ea1m c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh, b\u00e0n \u0111\u1ea1p ch\u00e2n k\u1ebft n\u1ed1i v\u1edbi PLC an to\u00e0n. Tr\u00ean gi\u1ea5y t\u1edd th\u00ec ho\u00e0n h\u1ea3o. Nh\u01b0ng tr\u00ean s\u00e0n x\u01b0\u1edfng, c\u1eeda s\u1ed5 t\u1eaft t\u1ea1m \u0111\u01b0\u1ee3c \u0111\u1eb7t m\u1edf t\u1eeb 12 mm tr\u00ean t\u1ea5m kim lo\u1ea1i k\u00e9o d\u00e0i su\u1ed1t 40 mm h\u00e0nh tr\u00ecnh v\u00ec ai \u0111\u00f3 kh\u00f4ng mu\u1ed1n g\u1eb7p nh\u1eefng l\u1ea7n d\u1eebng gi\u1ea3 do ph\u00f4i b\u1ecb cong v\u00eanh.<\/p>\n\n\n\n

    M\u01b0\u1eddi hai milim\u00e9t ti\u1ebfp c\u1eadn. B\u1ed1n m\u01b0\u01a1i milim\u00e9t h\u00e0nh tr\u00ecnh m\u00f9.<\/p>\n\n\n\n

    T\u1ea1i th\u1eddi \u0111i\u1ec3m \u0111\u00f3, b\u1ea1n ch\u01b0a c\u00e0i \u0111\u1eb7t b\u1ea3o v\u1ec7. B\u1ea1n \u0111\u00e3 l\u1eadp tr\u00ecnh cho m\u00e1y \u0111\u1ec3 b\u1ecf qua m\u1ed9t b\u00e0n tay.<\/p>\n\n\n\n

    \u0110\u00f3 l\u00e0 gi\u1edbi h\u1ea1n b\u1ea1n ph\u1ea3i gi\u1eef khi c\u1ea5u h\u00ecnh c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y: m\u1ed7i mili gi\u00e2y t\u1eaft ti\u1ebfng v\u00e0 m\u1ed7i milim\u00e9t v\u00f9ng m\u00f9 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi v\u1eadt l\u00fd c\u1ee7a qu\u00e1 tr\u00ecnh u\u1ed1n, kh\u00f4ng ph\u1ea3i v\u1edbi s\u1ef1 n\u00f4n n\u00f3ng c\u1ee7a ti\u1ebfn \u0111\u1ed9. N\u1ebfu tr\u1ea1ng th\u00e1i an to\u00e0n l\u00e0m ch\u1eadm s\u1ea3n xu\u1ea5t h\u01a1n vi\u1ec7c v\u01b0\u1ee3t qua b\u1ea3o v\u1ec7, ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd \u201c\u0111\u00e1nh b\u1ea1i\u201d b\u1ea1n b\u1eb1ng b\u0103ng keo, nam ch\u00e2m ho\u1eb7c m\u1ed9t s\u1ee3i d\u00e2y n\u1ed1i t\u1eaft qua \u0111\u1ea7u v\u00e0o an to\u00e0n.<\/p>\n\n\n\n

    V\u1eady n\u00ean c\u00f4ng vi\u1ec7c kh\u00f4ng ph\u1ea3i l\u00e0 \u201cb\u1eadt tia laser.\u201d M\u00e0 l\u00e0 th\u1ebf n\u00e0y: l\u00e0m cho chu k\u1ef3 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 nhanh h\u01a1n v\u00e0 tr\u01a1n tru h\u01a1n so v\u1edbi c\u00e1ch gian l\u1eadn.<\/p>\n\n\n\n

    L\u00e0m sao b\u1ea1n th\u1ef1c s\u1ef1 c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3 m\u00e0 kh\u00f4ng l\u00e0m ngh\u1ebdn t\u1ed1c \u0111\u1ed9 s\u1ea3n xu\u1ea5t?<\/p>\n\n\n\n

    L\u1ed7 h\u1ed5ng c\u1eeda s\u1ed5 t\u1eaft ti\u1ebfng: Chuy\u1ec7n g\u00ec x\u1ea3y ra khi d\u1ee5ng c\u1ee5 ti\u1ebfn g\u1ea7n kim lo\u1ea1i?<\/h3>\n\n\n\n

    \u0110\u1ee9ng b\u00ean c\u1ea1nh m\u1ed9t m\u00e1y ch\u1ea5n trong khi ti\u1ebfp c\u1eadn nhanh. C\u1ed1i ch\u1ea5n h\u1ea1 xu\u1ed1ng v\u1edbi t\u1ed1c \u0111\u1ed9 cao cho \u0111\u1ebfn khi g\u1ea7n ch\u1ea1m v\u00e0o ph\u00f4i. \u0110\u00f3 ch\u00ednh l\u00e0 l\u00fac h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n ph\u00e1t huy t\u00e1c d\u1ee5ng \u2014 v\u00ec tay th\u01b0\u1eddng \u1edf \u0111\u00f3, \u0111ang gi\u1eef v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

    ANSI B11.3 li\u00ean k\u1ebft kho\u1ea3ng c\u00e1ch an to\u00e0n v\u1edbi th\u1eddi gian d\u1eebng. N\u1ebfu th\u1eddi gian d\u1eebng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh l\u00e0 30 ms v\u00e0 kho\u1ea3ng c\u00e1ch an to\u00e0n \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n ch\u00ednh x\u00e1c, b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c \u1edf v\u1ecb tr\u00ed g\u1ea7n. T\u00f4i \u0111\u00e3 th\u1ea5y c\u00e1c h\u1ec7 th\u1ed1ng cho ph\u00e9p b\u1ea3o v\u1ec7 trong ph\u1ea1m vi 4 mm<\/strong> c\u1ee7a d\u1ee5ng c\u1ee5 trong qu\u00e1 tr\u00ecnh ti\u1ebfp c\u1eadn nhanh v\u00ec hi\u1ec7u su\u1ea5t d\u1eebng h\u1ed7 tr\u1ee3 \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n

    Gi\u1edd h\u00e3y xem chuy\u1ec7n g\u00ec x\u1ea3y ra khi b\u1ea1n l\u1eadp tr\u00ecnh m\u1ed9t c\u1eeda s\u1ed5 t\u1eaft ti\u1ebfng m\u1edf \u1edf 15 mm ph\u00eda tr\u00ean v\u1eadt li\u1ec7u \u0111\u1ec3 \u201c\u0111\u1ea3m b\u1ea3o n\u00f3 kh\u00f4ng ng\u1eaft s\u1edbm.\u201d<\/p>\n\n\n\n

    M\u01b0\u1eddi l\u0103m milim\u00e9t \u1edf t\u1ed1c \u0111\u1ed9 ti\u1ebfp c\u1eadn nhanh c\u00f3 th\u1ec3 t\u01b0\u01a1ng \u1ee9ng v\u1edbi h\u00e0ng ch\u1ee5c mili gi\u00e2y di chuy\u1ec3n. N\u1ebfu th\u1eddi gian d\u1eebng c\u1ed9ng v\u1edbi th\u1eddi gian ph\u1ea3n h\u1ed3i van l\u00e0 30 ms, v\u00e0 ch\u00e0y \u0111ang di chuy\u1ec3n, gi\u1ea3 s\u1eed, 100 mm m\u1ed7i gi\u00e2y trong giai \u0111o\u1ea1n \u0111\u00f3 (gi\u1ea3 \u0111\u1ecbnh nh\u01b0ng th\u1ef1c t\u1ebf cho ti\u1ebfp c\u1eadn c\u00f3 ki\u1ec3m so\u00e1t), th\u00ec s\u1ebd c\u00f3 3 mm qu\u00e3ng \u0111\u01b0\u1eddng di chuy\u1ec3n trong qu\u00e1 tr\u00ecnh d\u1eebng. \u1ed4n \u2014 n\u1ebfu h\u1ec7 th\u1ed1ng v\u1eabn ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

    Nh\u01b0ng n\u1ebfu b\u1ea1n \u0111\u00e3 t\u1eaft ti\u1ebfng s\u1edbm 15 mm, b\u1ea1n v\u1eeba t\u1ea1o ra m\u1ed9t v\u00f9ng kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 r\u1ed9ng 15 mm. L\u00fac n\u00e0y t\u00ednh to\u00e1n kh\u00f4ng c\u00f2n \u00fd ngh\u0129a v\u00ec c\u1ea3m bi\u1ebfn b\u1ecb l\u00e0m m\u00f9 theo thi\u1ebft k\u1ebf.<\/p>\n\n\n\n

    T\u00f4i \u0111\u00e3 \u0111i\u1ec1u tra m\u1ed9t ca b\u1ecb c\u1ee5t m\u1ed9t ph\u1ea7n ng\u00f3n tay, n\u01a1i ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111ang \u0111\u1ee1 m\u1ed9t m\u00e9p h\u1eb9p. C\u1eeda s\u1ed5 t\u1eaft ti\u1ebfng k\u00edch ho\u1ea1t qu\u00e1 s\u1edbm do c\u00e0i \u0111\u1eb7t CNC qu\u00e1 th\u1eadn tr\u1ecdng nh\u1eb1m b\u00f9 cho v\u1eadt li\u1ec7u b\u1ecb cong. C\u00e1c \u0111\u1ea7u ng\u00f3n tay c\u1ee7a anh ta tr\u01b0\u1ee3t v\u1ec1 ph\u00eda tr\u01b0\u1edbc khi ch\u00e0y chuy\u1ec3n t\u1eeb t\u1ed1c \u0111\u1ed9 nhanh sang ch\u1eadm. Kh\u00f4ng c\u00f3 ng\u1eaft. C\u1eeda s\u1ed5 v\u1eabn m\u1edf.<\/p>\n\n\n\n

    Anh ta kh\u00f4ng \u0111\u00e1nh l\u1eeba h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

    Ch\u00ednh ch\u00fang ta \u0111\u00e3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3, b\u1eb1ng c\u1ea5u h\u00ecnh sai.<\/p>\n\n\n\n

    Quy t\u1eafc \u0111\u01a1n gi\u1ea3n nh\u01b0ng t\u00e0n nh\u1eabn: c\u1eeda s\u1ed5 t\u1eaft ti\u1ebfng kh\u00f4ng \u0111\u01b0\u1ee3c m\u1edf s\u1edbm h\u01a1n kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u c\u1ea7n thi\u1ebft \u0111\u1ec3 tr\u00e1nh ng\u1eaft sai, v\u00e0 ph\u1ea3i \u0111\u00f3ng ngay khi giai \u0111o\u1ea1n kh\u00f4ng nguy hi\u1ec3m k\u1ebft th\u00fac. N\u1ebfu s\u1ef1 bi\u1ebfn thi\u00ean c\u1ee7a v\u1eadt li\u1ec7u bu\u1ed9c b\u1ea1n ph\u1ea3i m\u1edf r\u1ed9ng c\u1eeda s\u1ed5 \u0111\u00f3, b\u1ea1n kh\u00f4ng \u201ctinh ch\u1ec9nh \u0111\u1ec3 b\u1ecf qua.\u201d B\u1ea1n ph\u1ea3i kh\u1eafc ph\u1ee5c kh\u00e2u x\u1eed l\u00fd v\u1eadt li\u1ec7u ho\u1eb7c b\u1ed5 sung gi\u00e1 \u0111\u1ee1 sao cho tay kh\u00f4ng c\u1ea7n \u1edf trong v\u00f9ng \u0111\u00f3.<\/p>\n\n\n\n

    N\u1ebfu kh\u00f4ng, b\u1ea1n \u0111\u00e3 t\u1ea1o ra m\u1ed9t b\u00e0n \u0111\u1ea1p phanh ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng khi chi\u1ebfc xe t\u1ea3i \u0111\u00e3 d\u1eebng l\u1ea1i.<\/p>\n\n\n\n

    N\u1ebfu c\u1eeda s\u1ed5 t\u1eaft ti\u1ebfng l\u00e0 m\u1ed9t l\u1ed7 h\u1ed5ng, v\u1eady c\u00f2n nh\u1eefng l\u00fac ch\u00fang ta c\u1ed1 t\u00ecnh b\u1ea3o c\u1ea3m bi\u1ebfn b\u1ecf qua m\u1ed9t v\u00f9ng kh\u00f4ng gian th\u00ec sao?<\/p>\n\n\n\n

    B\u1ecf v\u00f9ng v\u00e0 tr\u00f4i n\u1ed5i: B\u1ea1n c\u00f3 \u0111ang l\u1eadp tr\u00ecnh c\u1ea3m bi\u1ebfn \u0111\u1ec3 b\u1ecf qua nguy hi\u1ec3m kh\u00f4ng?<\/h3>\n\n\n\n

    T\u00f4i \u0111\u00e3 b\u01b0\u1edbc t\u1edbi m\u1ed9t m\u00e1y ch\u1ea5n d\u00e0i 10 foot, n\u01a1i ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u00e3 d\u00e1n k\u00edn c\u00e1c ch\u00f9m tia ph\u00eda d\u01b0\u1edbi \u0111\u1ec3 c\u00f3 th\u1ec3 \u201cth\u1ea3 n\u1ed5i\u201d c\u00e1c chi ti\u1ebft nh\u1ecf v\u00e0o khu\u00f4n m\u00e0 kh\u00f4ng b\u1ecb ng\u1eaft li\u00ean t\u1ee5c. Anh ta kh\u00f4ng h\u1ec1 gi\u1ea5u gi\u1ebfm. B\u0103ng keo c\u00f3 m\u00e0u xanh lam r\u1ef1c r\u1ee1.<\/p>\n\n\n\n

    Nh\u01b0ng \u0111\u00e2y l\u00e0 ph\u1ea7n khi\u1ebfn t\u00f4i kh\u00f3 ch\u1ecbu: m\u00e1y CNC \u0111\u00e3 c\u00f3 ch\u1ee9c n\u0103ng l\u1eadp tr\u00ecnh v\u00f9ng \u201cblank\u2011out\u201d g\u1eafn v\u1edbi v\u1ecb tr\u00ed backgauge. N\u00f3 \u0111\u01b0\u1ee3c \u0111\u1eb7t \u0111\u1ec3 b\u1ecf qua m\u1ed9t v\u00f9ng h\u00ecnh ch\u1eef nh\u1eadt tr\u01b0\u1edbc khu\u00f4n \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi m\u00e9p h\u1ed9p.<\/p>\n\n\n\n

    C\u00e1c thanh d\u00e1n ch\u1ec9 l\u00e0 b\u01b0\u1edbc cu\u1ed1i c\u00f9ng. H\u1ec7 th\u1ed1ng v\u1ed1n \u0111\u00e3 quen v\u1edbi vi\u1ec7c b\u1ecf qua khu v\u1ef1c \u0111\u00f3.<\/p>\n\n\n\n

    Blanking c\u00f3 m\u1ed9t m\u1ee5c \u0111\u00edch h\u1ee3p ph\u00e1p. C\u00e1c chi ti\u1ebft ph\u1ee9c t\u1ea1p v\u1edbi m\u00e9p b\u00ean ho\u1eb7c ch\u00e2n g\u1eadp s\u1ebd ch\u1ea1m v\u00e0o v\u00f9ng c\u1ea3m bi\u1ebfn. N\u1ebfu b\u1ea1n kh\u00f4ng blank nh\u1eefng v\u00f9ng n\u00e0y, b\u1ea1n s\u1ebd kh\u00f4ng th\u1ec3 ch\u1ea1y chi ti\u1ebft. H\u1ee3p l\u00fd.<\/p>\n\n\n\n

    Nh\u01b0ng blanking ph\u1ea3i d\u1ef1a tr\u00ean h\u00ecnh d\u1ea1ng c\u1ee5 th\u1ec3 v\u00e0 h\u00e0nh tr\u00ecnh c\u1ee5 th\u1ec3. N\u1ebfu ch\u01b0\u01a1ng tr\u00ecnh c\u1ee7a b\u1ea1n n\u00f3i: \u201cB\u1ecf qua m\u1ecdi th\u1ee9 t\u1eeb 0\u201350 mm ph\u00eda tr\u00ean khu\u00f4n tr\u00ean to\u00e0n chi\u1ec1u r\u1ed9ng,\u201d b\u1ea1n \u0111\u00e3 t\u00e1i t\u1ea1o l\u1ed7i c\u1ee7a m\u1ed9t r\u00e0o ch\u1eafn c\u1ed1 \u0111\u1ecbnh ch\u1eb7n c\u00f4ng vi\u1ec7c t\u1ed1t v\u00e0 khuy\u1ebfn kh\u00edch vi\u1ec7c v\u01b0\u1ee3t qua \u2014 ngo\u1ea1i tr\u1eeb gi\u1edd \u0111\u00e2y n\u00f3 l\u00e0 v\u00f4 h\u00ecnh v\u00e0 l\u1eadp tr\u00ecnh \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

    V\u00e0 kh\u00f4ng ch\u1ec9 l\u00e0 v\u00f9ng ph\u00eda tr\u01b0\u1edbc. Nghi\u00ean c\u1ee9u c\u1ee7a IRSST v\u1ec1 phanh th\u1ee7y l\u1ef1c cho th\u1ea5y c\u00e1c \u0111i\u1ec3m ti\u1ebfp c\u1eadn ph\u00eda sau v\u00e0 b\u00ean l\u00e0 nh\u1eefng m\u1ed1i nguy th\u1ef1c s\u1ef1 trong c\u00e1c thao t\u00e1c nhi\u1ec1u m\u1eb7t. N\u1ebfu laser ph\u00eda tr\u01b0\u1edbc \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh c\u1ea9n th\u1eadn nh\u01b0ng v\u00f9ng b\u00ean kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd xoay quanh phanh \u0111\u1ec3 \u0111\u1ee1 c\u00e1c chi ti\u1ebft d\u00e0i t\u1eeb b\u00ean s\u01b0\u1eddn. Con \u0111\u01b0\u1eddng \u00edt tr\u1edf ng\u1ea1i nh\u1ea5t tr\u1edf th\u00e0nh con \u0111\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7.<\/p>\n\n\n\n

    An to\u00e0n m\u00e0 l\u00e0m ch\u1eadm ph\u00eda tr\u01b0\u1edbc nh\u01b0ng \u0111\u1ec3 ph\u00eda b\u00ean m\u1edf th\u00ec kh\u00f4ng lo\u1ea1i b\u1ecf r\u1ee7i ro. N\u00f3 ch\u1ec9 ph\u00e2n ph\u1ed1i l\u1ea1i r\u1ee7i ro.<\/p>\n\n\n\n

    V\u00ec v\u1eady, \u0111\u00e2y l\u00e0 quy t\u1eafc c\u1ea5u h\u00ecnh th\u1ef1c t\u1ebf: ch\u1ec9 blank ch\u00ednh x\u00e1c h\u00ecnh d\u1ea1ng x\u00e2m nh\u1eadp c\u1ea7n thi\u1ebft cho l\u1ea7n u\u1ed1n \u0111\u00f3, v\u00e0 g\u1eafn n\u00f3 v\u1edbi b\u1ed9 nh\u1edb c\u00f4ng c\u1ee5 v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh k\u00e8m x\u00e1c minh. N\u1ebfu m\u1ea5t ID c\u00f4ng c\u1ee5 ho\u1eb7c tham chi\u1ebfu backgauge, h\u1ec7 th\u1ed1ng n\u00ean m\u1eb7c \u0111\u1ecbnh kh\u00f4ng blank, ch\u1ee9 kh\u00f4ng blank to\u00e0n b\u1ed9. \u0110\u00fang, \u0111i\u1ec1u \u0111\u00f3 \u0111\u1ed3ng ngh\u0129a v\u1edbi nh\u1eefng l\u1ea7n ng\u1eaft phi\u1ec1n to\u00e1i khi x\u1ea3y ra l\u1ed7i.<\/p>\n\n\n\n

    \u0110\u00f3 ch\u00ednh l\u00e0 \u00fd t\u01b0\u1edfng.<\/p>\n\n\n\n

    N\u1ebfu vi\u1ec7c kh\u00f4i ph\u1ee5c sau l\u1ed7i y\u00eau c\u1ea7u m\u00e3 gi\u00e1m s\u00e1t v\u00e0 reset c\u00f3 ch\u1ee7 \u00fd, n\u00f3 v\u1eabn nhanh h\u01a1n so v\u1edbi b\u00e1o c\u00e1o b\u1ecb c\u1eaft c\u1ee5t v\u00e0 \u0111\u00f3ng c\u1eeda s\u00e1u tu\u1ea7n.<\/p>\n\n\n\n

    \u0110i\u1ec1u n\u00e0y d\u1eabn ch\u00fang ta \u0111\u1ebfn \u0111\u1ea7u v\u00e0o b\u1ecb l\u1ea1m d\u1ee5ng nhi\u1ec1u nh\u1ea5t tr\u00ean m\u00e1y.<\/p>\n\n\n\n

    B\u00e0n \u0111\u1ea1p ch\u00e2n n\u1eb1m \u1edf \u0111\u00e2u trong thi\u1ebft l\u1eadp \u0111i\u1ec1u khi\u1ec3n k\u00e9p?<\/h3>\n\n\n\n

    T\u00f4i \u0111\u00e3 th\u1ea5y c\u00e1ch b\u1ed1 tr\u00ed n\u00fat b\u1ea5m hai tay c\u1ed9ng b\u00e0n \u0111\u1ea1p ch\u00e2n, y\u00eau c\u1ea7u c\u1ea3 hai tay \u0111\u1eb7t xu\u1ed1ng v\u00e0 b\u00e0n \u0111\u1ea1p \u0111\u01b0\u1ee3c nh\u1ea5n \u0111\u1ec3 b\u1eaft \u0111\u1ea7u h\u00e0nh tr\u00ecnh. Tr\u00ean gi\u1ea5y t\u1edd th\u00ec k\u00edn k\u1ebd.<\/p>\n\n\n\n

    Tr\u00ean th\u1ef1c t\u1ebf, th\u1eddi gian chu tr\u00ecnh gi\u1ea3m m\u1ea1nh. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh b\u1eaft \u0111\u1ea7u ch\u00e8n m\u1ed9t kh\u1ed1i nh\u00f4m v\u00e0o m\u1ed9t n\u00fat b\u1ea5m tay v\u00e0 \u0111i\u1ec1u khi\u1ec3n n\u00fat c\u00f2n l\u1ea1i b\u1eb1ng tay trong khi nh\u1ea5n b\u00e0n \u0111\u1ea1p. Th\u1eddi gian ch\u1ed1ng bu\u1ed9c tay ch\u1eb7t ch\u1ebd \u2014 nh\u01b0ng m\u1ed9t kh\u1ed1i ch\u00e8n ch\u1eafc th\u00ec kh\u00f4ng nh\u1ea5p nh\u00e1y.<\/p>\n\n\n\n

    Khi b\u1ea1n bu\u1ed9c ba chi ph\u1ea3i \u0111\u1ed3ng thu\u1eadn tr\u01b0\u1edbc m\u1ed7i h\u00e0nh tr\u00ecnh tr\u00ean m\u1ed9t phanh s\u1ea3n xu\u1ea5t y\u00eau c\u1ea7u li\u00ean t\u1ee5c reposition tay, b\u1ea1n t\u1ea1o l\u1ef1c c\u1ea3n v\u1ec1 c\u00f4ng th\u00e1i h\u1ecdc. L\u1ef1c c\u1ea3n t\u1ea1o ra c\u00e1c c\u00e1ch l\u00e1ch lu\u1eadt.<\/p>\n\n\n\n

    B\u00e0n \u0111\u1ea1p ch\u00e2n kh\u00f4ng n\u00ean l\u00e0 kh\u00f3a li\u00ean \u0111\u1ed9ng th\u1ee9 ba ch\u1ed3ng tr\u00ean \u0111i\u1ec1u khi\u1ec3n hai tay trong qu\u00e1 tr\u00ecnh u\u1ed1n s\u1ea3n xu\u1ea5t c\u1ea7n h\u1ed7 tr\u1ee3 b\u1eb1ng tay. \u0110\u00f3 l\u00e0 vi\u1ec7c c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n. Nhi\u1ec7m v\u1ee5 c\u1ee7a b\u00e0n \u0111\u1ea1p l\u00e0 \u00fd \u0111\u1ecbnh \u2014 m\u1ed9t kh\u1edfi \u0111\u1ed9ng c\u00f3 ch\u1ee7 \u00fd khi h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn x\u00e1c nh\u1eadn tay \u0111\u00e3 an to\u00e0n.<\/p>\n\n\n\n

    \u0110\u00e2y l\u00e0 c\u00e1ch n\u00f3 t\u1ed3n t\u1ea1i ngo\u00e0i th\u1ef1c t\u1ebf:<\/p>\n\n\n\n

      \n
    • \u0110i\u1ec1u khi\u1ec3n hai tay b\u1eaft bu\u1ed9c trong qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp, th\u1eed nghi\u1ec7m v\u00e0 x\u1eed l\u00fd s\u1ef1 c\u1ed1.<\/li>\n\n\n\n
    • Khi \u1edf ch\u1ebf \u0111\u1ed9 s\u1ea3n xu\u1ea5t, b\u00e0n \u0111\u1ea1p ch\u00e2n c\u00f3 b\u1ea3o v\u1ec7 ch\u1ec9 \u0111\u01b0\u1ee3c b\u1eadt khi h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n x\u00e1c nh\u1eadn v\u00f9ng an to\u00e0n.<\/li>\n\n\n\n
    • Ch\u1ed1ng l\u1eb7p l\u1ea1i \u0111\u01b0\u1ee3c th\u1ef1c thi \u0111\u1ec3 b\u00e0n \u0111\u1ea1p ph\u1ea3i tr\u1edf v\u1ec1 v\u1ecb tr\u00ed trung l\u1eadp tr\u01b0\u1edbc h\u00e0nh tr\u00ecnh ti\u1ebfp theo.<\/li>\n\n\n\n
    • PLC an to\u00e0n gi\u00e1m s\u00e1t s\u1ef1 l\u1ec7ch gi\u1eefa t\u00edn hi\u1ec7u b\u00e0n \u0111\u1ea1p v\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a tr\u1ee5c ram.<\/li>\n<\/ul>\n\n\n\n

      Gi\u1edd \u0111\u00e2y, ng\u01b0\u1eddi v\u1eadn h\u00e0nh kh\u00f4ng c\u00f2n ph\u1ea3i v\u1eadt l\u1ed9n v\u1edbi c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n n\u1eefa. Anh ta \u0111\u1ecbnh v\u1ecb b\u1ed9 ph\u1eadn, tia laser x\u00e1c nh\u1eadn kh\u00f4ng gian an to\u00e0n, v\u00e0 m\u1ed9t \u0111\u1ed9ng t\u00e1c t\u1ef1 nhi\u00ean b\u1eb1ng ch\u00e2n b\u1eaft \u0111\u1ea7u chu k\u1ef3. Nhanh h\u01a1n c\u1ea3 vi\u1ec7c d\u00e1n ch\u00f9m tia. Nhanh h\u01a1n vi\u1ec7c ch\u00e8n n\u00fat.<\/p>\n\n\n\n

      N\u1ebfu b\u1ea1n khi\u1ebfn chu k\u1ef3 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 tr\u1edf th\u00e0nh con \u0111\u01b0\u1eddng tr\u01a1n tru nh\u1ea5t, h\u1ea7u h\u1ebft c\u00e1c ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd ch\u1ecdn n\u00f3. Kh\u00f4ng ph\u1ea3i v\u00ec h\u1ecd y\u00eau th\u00edch OSHA.<\/p>\n\n\n\n

      M\u00e0 v\u00ec h\u1ecd y\u00eau nh\u1ecbp \u0111i\u1ec7u.<\/p>\n\n\n\n

      V\u00e0 ch\u00ednh nh\u1ecbp \u0111i\u1ec7u \u0111\u00f3 s\u1ebd d\u1ea7n ph\u00e1 v\u1ee1 c\u1ea5u h\u00ecnh c\u1ea9n th\u1eadn c\u1ee7a b\u1ea1n theo th\u1eddi gian n\u1ebfu b\u1ea1n kh\u00f4ng \u0111o l\u01b0\u1eddng n\u00f3.<\/p>\n\n\n\n

      S\u1ef1 Suy Gi\u1ea3m Trong 90 Ng\u00e0y: T\u1ea1i Sao C\u00e1c H\u1ec7 Th\u1ed1ng Tu\u00e2n Th\u1ee7 L\u1ea1i Th\u1ea5t B\u1ea1i Trong C\u00e1c Cu\u1ed9c Ki\u1ec3m To\u00e1n C\u1ee7a OSHA Sau Nhi\u1ec1u Th\u00e1ng<\/h2>\n\n\n\n

      T\u00f4i \u0111\u00e3 b\u01b0\u1edbc v\u00e0o m\u1ed9t nh\u00e0 m\u00e1y v\u00e0o th\u00e1ng T\u01b0, n\u01a1i ch\u00fang t\u00f4i \u0111\u00e3 v\u1eadn h\u00e0nh m\u1ed9t cell m\u00e1y u\u1ed1n t\u1ea5m ho\u00e0n h\u1ea3o v\u00e0o th\u00e1ng M\u1ed9t. Th\u1eddi gian d\u1eebng \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng. Kho\u1ea3ng c\u00e1ch an to\u00e0n \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n. Tia laser \u0111\u00e3 \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh. Khi t\u00f4i quay l\u1ea1i, thanh ram \u0111\u00e3 v\u01b0\u1ee3t qua \u0111i\u1ec3m d\u1eebng ban \u0111\u1ea7u v\u1eeba \u0111\u1ee7 \u0111\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng, b\u1ed9 khu\u00f4n \u0111\u00e3 \u0111\u01b0\u1ee3c thay hai l\u1ea7n, v\u00e0 c\u1eeda s\u1ed5 d\u1eadp v\u1eabn c\u00f2n \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh cho c\u00f4ng vi\u1ec7c \u0111\u1ea7u ti\u00ean. Tr\u00ean gi\u1ea5y t\u1edd, kh\u00f4ng c\u00f3 g\u00ec thay \u0111\u1ed5i. Nh\u01b0ng trong th\u00e9p v\u00e0 th\u1ee7y l\u1ef1c, m\u1ecdi th\u1ee9 \u0111\u00e3 thay \u0111\u1ed5i.<\/p>\n\n\n\n

      \u0110\u00f3 ch\u00ednh l\u00e0 s\u1ef1 suy gi\u1ea3m trong 90 ng\u00e0y.<\/p>\n\n\n\n

      OSHA li\u1ec7t k\u00ea vi\u1ec7c b\u1ea3o v\u1ec7 m\u00e1y m\u00f3c trong m\u01b0\u1eddi vi ph\u1ea1m h\u00e0ng \u0111\u1ea7u m\u1ed7i n\u0103m. Tuy nhi\u00ean, c\u00f3 kho\u1ea3ng m\u1ed9t thanh tra tu\u00e2n th\u1ee7 cho h\u00e0ng ch\u1ee5c ng\u00e0n c\u00f4ng nh\u00e2n. H\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng kh\u00f4ng th\u1ea5t b\u1ea1i v\u00ec c\u00f3 thanh tra \u0111\u1ebfn ki\u1ec3m tra. Ch\u00fang th\u1ea5t b\u1ea1i v\u00ec \u00e1p l\u1ef1c s\u1ea3n xu\u1ea5t n\u1eb7ng n\u1ec1 h\u01a1n h\u1ec7 th\u1ed1ng phanh m\u00e0 b\u1ea1n \u0111\u00e3 l\u1eafp \u0111\u1eb7t \u0111\u1ec3 ki\u1ec3m so\u00e1t n\u00f3.<\/p>\n\n\n\n

      B\u1ea3o v\u1ec7 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t l\u1ea7n c\u00e0i \u0111\u1eb7t duy nh\u1ea5t. N\u00f3 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u1ed9ng, gi\u1ed1ng nh\u01b0 h\u1ec7 th\u1ed1ng phanh kh\u00f4ng kh\u00ed tr\u00ean m\u1ed9t chi\u1ebfc xe t\u1ea3i ch\u1edf n\u1eb7ng. Mi\u1ebfng \u0111\u1ec7m m\u00f2n. C\u01a1 c\u1ea5u li\u00ean k\u1ebft gi\u00e3n. T\u00e0i x\u1ebf th\u00edch nghi. N\u1ebfu b\u1ea1n kh\u00f4ng \u0111o v\u00e0 \u0111i\u1ec1u ch\u1ec9nh, kho\u1ea3ng c\u00e1ch d\u1eebng s\u1ebd d\u1ea7n v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n an to\u00e0n l\u00e2u tr\u01b0\u1edbc khi c\u00f3 ai nh\u1eadn ra. V\u00ec v\u1eady, c\u00e2u h\u1ecfi th\u1ef1c s\u1ef1 kh\u00f4ng ph\u1ea3i l\u00e0 \u201cCh\u00fang ta \u0111\u00e3 l\u1eafp \u0111\u1eb7t n\u00f3 \u0111\u00fang ch\u01b0a?\u201d m\u00e0 l\u00e0 \u201cAi \u0111ang ki\u1ec3m tra r\u1eb1ng n\u00f3 v\u1eabn \u0111\u00fang sau 30.000 chu k\u1ef3 v\u00e0 ba l\u1ea7n thay d\u1ee5ng c\u1ee5?\u201d<\/p>\n\n\n\n

      Th\u1eddi Gian D\u1eebng So V\u1edbi Kho\u1ea3ng C\u00e1ch An To\u00e0n: Ai Th\u1ef1c S\u1ef1 \u0110ang \u0110o \u0110\u1ed9 M\u00f2n C\u1ee7a Phanh?<\/h3>\n\n\n\n

      Tr\u00ean m\u1ed9t h\u1ec7 th\u1ed1ng phanh th\u1ee7y l\u1ef1c, t\u00f4i \u0111\u00e3 \u0111o \u0111\u01b0\u1ee3c \u0111\u1ed9 l\u1ec7ch th\u1eddi gian d\u1eebng t\u1eeb 30 mili gi\u00e2y khi m\u1edbi l\u1eafp \u0111\u1eb7t l\u00ean 42 mili gi\u00e2y sau s\u00e1u th\u00e1ng. Nghe c\u00f3 v\u1ebb kh\u00f4ng nhi\u1ec1u. H\u00e3y th\u1eed t\u00ednh xem.<\/p>\n\n\n\n

      Kho\u1ea3ng c\u00e1ch an to\u00e0n cho c\u00e1c thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n d\u1ef1a tr\u00ean th\u1eddi gian d\u1eebng c\u1ed9ng v\u1edbi h\u1ec7 s\u1ed1 an to\u00e0n. C\u00e1c c\u00f4ng th\u1ee9c c\u1ee7a ANSI chuy\u1ec3n \u0111\u1ed5i mili gi\u00e2y th\u00e0nh milim\u00e9t. N\u1ebfu ph\u00e9p t\u00ednh ban \u0111\u1ea7u c\u1ee7a b\u1ea1n \u0111\u1eb7t tia laser c\u00e1ch v\u00f9ng nguy hi\u1ec3m 100 mm<\/strong>, th\u00ec th\u00eam 12 mili gi\u00e2y \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u1ea9y kho\u1ea3ng c\u00e1ch y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n v\u01b0\u1ee3t qu\u00e1 110 mm<\/strong> t\u00f9y thu\u1ed9c v\u00e0o gi\u1ea3 \u0111\u1ecbnh v\u1ec1 t\u1ed1c \u0111\u1ed9 ti\u1ebfp c\u1eadn. N\u1ebfu b\u1ed9 ph\u00e1t v\u1eabn \u0111\u01b0\u1ee3c g\u1eafn \u1edf v\u1ecb tr\u00ed 100, th\u00ec gi\u1edd b\u1ea1n \u0111\u00e3 b\u1ecb thi\u1ebfu kho\u1ea3ng c\u00e1ch an to\u00e0n.<\/p>\n\n\n\n

      Kh\u00f4ng ai di chuy\u1ec3n t\u1ea5m ch\u1eafn c\u1ea3.<\/p>\n\n\n\n

      M\u00e1y ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ea5t nhi\u1ec1u th\u1eddi gian h\u01a1n \u0111\u1ec3 d\u1eebng l\u1ea1i v\u00ec van c\u0169 \u0111i, ph\u1edbt m\u00f2n, v\u00e0 nhi\u1ec7t \u0111\u1ed9 d\u1ea7u l\u00e0m thay \u0111\u1ed5i th\u1eddi gian ph\u1ea3n \u1ee9ng. Ch\u00fang ta th\u1ef1c s\u1ef1 \u0111ang t\u00ednh to\u00e1n \u0111i\u1ec1u g\u00ec khi thi\u1ebft l\u1eadp nh\u1eefng h\u1ec7 th\u1ed1ng n\u00e0y? Ch\u00fang ta \u0111ang t\u00ednh to\u00e1n m\u1ed9t b\u1ee9c \u1ea3nh ch\u1ee5p nhanh c\u1ee7a v\u1eadt l\u00fd v\u00e0o ng\u00e0y h\u00f4m \u0111\u00f3, v\u1edbi lo\u1ea1i d\u1ea7u \u0111\u00f3, v\u1edbi nh\u1eefng linh ki\u1ec7n \u0111\u00f3.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 \u0111i\u1ec1u tra m\u1ed9t v\u1ee5 k\u1eb9p n\u00e1t \u0111\u1ea7u ng\u00f3n tay m\u00e0 trong \u0111\u00f3 thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n \u0111\u01b0\u1ee3c g\u1eafn \u0111\u00fang v\u1ecb tr\u00ed\u2014d\u1ef1a tr\u00ean nghi\u00ean c\u1ee9u th\u1eddi gian d\u1eebng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ba n\u0103m tr\u01b0\u1edbc. Nh\u1eadt k\u00fd b\u1ea3o tr\u00ec cho th\u1ea5y \u0111\u00e3 c\u00f3 c\u00f4ng vi\u1ec7c s\u1eeda phanh, nh\u01b0ng kh\u00f4ng c\u00f3 \u0111o l\u01b0\u1eddng l\u1ea1i. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh kh\u00f4ng v\u00f4 hi\u1ec7u h\u00f3a b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec. H\u1ec7 th\u1ed1ng \u0111\u00e3 tr\u00f4i ra ngo\u00e0i th\u00f4ng s\u1ed1, v\u00e0 kh\u00f4ng ai ti\u1ebfn h\u00e0nh ki\u1ec3m tra l\u1ea1i.<\/p>\n\n\n\n

      N\u1ebfu b\u1ea1n kh\u00f4ng th\u1ef1c hi\u1ec7n x\u00e1c minh \u0111\u1ecbnh k\u1ef3 th\u1eddi gian d\u1eebng b\u1eb1ng thi\u1ebft b\u1ecb \u0111o \u0111\u00e3 hi\u1ec7u chu\u1ea9n\u2014v\u00e0 \u0111i\u1ec1u ch\u1ec9nh l\u1ea1i kho\u1ea3ng c\u00e1ch an to\u00e0n khi n\u00f3 thay \u0111\u1ed5i\u2014th\u00ec b\u1ea1n \u0111ang \u0111i\u1ec1u khi\u1ec3n m\u1ed9t t\u1ea3i tr\u1ecdng xu\u1ed1ng d\u1ed1c v\u1edbi m\u00e1 phanh m\u00e0 b\u1ea1n ch\u01b0a bao gi\u1edd ki\u1ec3m tra. V\u1eady ai l\u00e0 ng\u01b0\u1eddi ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho vi\u1ec7c \u0111o l\u01b0\u1eddng \u0111\u00f3 trong x\u01b0\u1edfng c\u1ee7a b\u1ea1n: b\u1ea3o tr\u00ec, k\u1ef9 thu\u1eadt, hay kh\u00f4ng ai c\u1ea3?<\/p>\n\n\n\n

      Khi Thay \u0110\u1ed5i D\u1ee5ng C\u1ee5: H\u1ec7 Th\u1ed1ng B\u1ea3o V\u1ec7 C\u1ee7a B\u1ea1n Th\u00edch \u1ee8ng Hay S\u1ee5p \u0110\u1ed5?<\/h3>\n\n\n\n

      M\u1ed9t gi\u00e1m s\u00e1t vi\u00ean t\u1eebng n\u00f3i v\u1edbi t\u00f4i r\u1eb1ng h\u1ecd \u201ctu\u00e2n th\u1ee7 kho\u1ea3ng c\u00e1ch an to\u00e0n\u201d v\u00ec \u0111\u00e2y l\u00e0 \u201cc\u00f4ng vi\u1ec7c t\u00f9y ch\u1ec9nh\u201d. T\u00f4i h\u1ecfi th\u00e1ng tr\u01b0\u1edbc h\u1ecd ch\u1ea1y bao nhi\u00eau c\u00e1i gi\u00e1 \u0111\u1ee1 \u0111\u00f3. \u00d4ng \u1ea5y n\u00f3i 3,000. OSHA cho ph\u00e9p b\u1ea3o v\u1ec7 kho\u1ea3ng c\u00e1ch an to\u00e0n m\u00e0 kh\u00f4ng c\u1ea7n r\u00e0o ch\u1eafn v\u1eadt l\u00fd ch\u1ec9 cho c\u00e1c \u0111\u1ee3t t\u00f9y ch\u1ec9nh gi\u1edbi h\u1ea1n \u2014 nhi\u1ec1u h\u01a1n m\u1ed9t s\u1ea3n ph\u1ea9m, nh\u01b0ng kh\u00f4ng qu\u00e1 b\u1ed1n gi\u1edd m\u1ed7i th\u00e1ng cho c\u00f9ng m\u1ed9t s\u1ea3n ph\u1ea9m. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 t\u00f9y ch\u1ec9nh. \u0110\u00e2y l\u00e0 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c h\u00f3a trang th\u00e0nh x\u01b0\u1edfng gia c\u00f4ng.<\/p>\n\n\n\n

      \u0110\u00f3 kh\u00f4ng ph\u1ea3i h\u00e0nh vi c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh. \u0110\u00f3 l\u00e0 s\u1ef1 tr\u01b0\u1ee3t trong ph\u00e2n lo\u1ea1i.<\/p>\n\n\n\n

      C\u00e1c l\u1ea7n thay d\u1ee5ng c\u1ee5 l\u00e0 m\u1ed9t s\u1ef1 r\u00f2 r\u1ec9 ch\u1eadm kh\u00e1c. Chi\u1ec1u cao khu\u00f4n m\u1edbi thay \u0111\u1ed5i \u0111\u1ed9 cao \u0111i\u1ec3m k\u1eb9p. C\u00fa \u0111\u1ea5m c\u1ed5 ng\u1ed7ng thay th\u1ebf c\u00fa \u0111\u1ea5m th\u1eb3ng, v\u00e0 \u0111\u1ed9t nhi\u00ean h\u00ecnh d\u1ea1ng x\u00e2m nh\u1eadp v\u00e0o v\u00f9ng tia laser thay \u0111\u1ed5i. N\u1ebfu v\u00f9ng c\u1eaft c\u1ee7a b\u1ea1n g\u1eafn li\u1ec1n v\u1edbi h\u00ecnh d\u1ea1ng c\u0169 m\u00e0 kh\u00f4ng ai x\u00e1c nh\u1eadn, b\u1ea1n s\u1ebd g\u1eb7p s\u1ef1 c\u1ed1 g\u00e2y phi\u1ec1n nhi\u1ec5u \u2014 ho\u1eb7c t\u1ec7 h\u01a1n, m\u1ed9t v\u00f9ng c\u1eaft qu\u00e1 r\u1ed9ng.<\/p>\n\n\n\n

      V\u00e0 \u0111\u00e2y l\u00e0 c\u00e1ch gian l\u1eadn x\u1ea3y ra khi b\u1ea3o v\u1ec7 kh\u00f4ng th\u00edch \u1ee9ng: ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd m\u1edf r\u1ed9ng v\u00f9ng lo\u1ea1i b\u1ecf l\u1eadp tr\u00ecnh trong CNC \u0111\u1ec3 s\u1ea3n ph\u1ea9m v\u01b0\u1ee3t qua m\u00e0 kh\u00f4ng b\u1ecb ng\u1eaft, r\u1ed3i \u0111\u1ec3 nguy\u00ean nh\u01b0 v\u1eady cho c\u00f4ng vi\u1ec7c ti\u1ebfp theo. Anh ta s\u1ebd kh\u00f4ng ngh\u0129 \u0111\u00f3 l\u00e0 b\u1ecf qua b\u1ea3o v\u1ec7. Anh ta s\u1ebd g\u1ecdi \u0111\u00f3 l\u00e0 \u201cl\u00e0m cho m\u00e1y ch\u1ea1y.\u201d<\/p>\n\n\n\n

      T\u00f4i c\u0169ng \u0111\u00e3 th\u1ea5y phi\u00ean b\u1ea3n v\u1eadt l\u00fd. Tr\u00ean m\u00e1y \u0111\u1ed9t th\u00e1p, m\u1ed9t c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n x\u00e1c nh\u1eadn r\u00e0o ch\u1eafn \u0111\u00e3 \u0111\u00f3ng b\u1ecb b\u1ecf qua b\u1eb1ng m\u1ed9t m\u1ea3nh kim lo\u1ea1i nh\u1ecf. R\u00e0o ch\u1eafn tr\u00f4ng nh\u01b0 \u0111\u00e3 \u0111\u00f3ng. M\u1ea1ch an to\u00e0n t\u01b0\u1edfng n\u00f3 \u0111\u00e3 \u0111\u00f3ng. Th\u1ef1c t\u1ebf n\u00f3 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng. L\u1ed7i \u0111i\u1ec3m \u0111\u01a1n, kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y t\u1eeb kho\u1ea3ng c\u00e1ch ba m\u00e9t.<\/p>\n\n\n\n

      Khi OSHA tr\u00edch d\u1eabn c\u00e1c tr\u01b0\u1eddng h\u1ee3p n\u00e0y theo 29 CFR 1910.212, h\u1ecd kh\u00f4ng quan t\u00e2m r\u00e0o ch\u1eafn ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c l\u1eafp ho\u1eb7c ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt. C\u00f9ng m\u1ed9t vi ph\u1ea1m. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7t ra c\u00e2u h\u1ecfi kh\u00f3 h\u01a1n: h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 c\u1ee7a b\u1ea1n c\u00f3 \u0111\u1ee7 d\u1ea1ng m\u00f4\u2011\u0111un v\u00e0 t\u1ef1 ki\u1ec3m tra \u0111\u1ec3 t\u1ed3n t\u1ea1i qua c\u00e1c thay \u0111\u1ed5i d\u1ee5ng c\u1ee5 \u0111\u1ecbnh k\u1ef3 m\u00e0 kh\u00f4ng c\u1ea7n ai nh\u1edb \u0111\u1ebfn danh s\u00e1ch ki\u1ec3m tra?<\/p>\n\n\n\n

      M\u1ed9t Cu\u1ed9c Ki\u1ec3m Tra B\u1ea3o V\u1ec7 H\u00e0ng Th\u00e1ng Th\u1ef1c S\u1ef1 N\u00ean Bao G\u1ed3m Nh\u1eefng G\u00ec<\/h3>\n\n\n\n

      Kh\u00f4ng ph\u1ea3i l\u00e0 \u0111i b\u1ed9 v\u1edbi b\u1ea3ng ki\u1ec3m tra. L\u00e0 ki\u1ec3m tra ch\u1ee9c n\u0103ng.<\/p>\n\n\n\n

      B\u1eaft \u0111\u1ea7u v\u1edbi \u0111o th\u1eddi gian d\u1eebng m\u00e1y. Ghi l\u1ea1i gi\u00e1 tr\u1ecb hi\u1ec7n t\u1ea1i. So s\u00e1nh v\u1edbi gi\u00e1 tr\u1ecb chu\u1ea9n. N\u1ebfu n\u00f3 t\u0103ng, t\u00ednh to\u00e1n l\u1ea1i kho\u1ea3ng c\u00e1ch an to\u00e0n c\u1ea7n thi\u1ebft v\u00e0 x\u00e1c minh thi\u1ebft b\u1ecb c\u1ea3m \u1ee9ng hi\u1ec7n di\u1ec7n \u0111\u01b0\u1ee3c g\u1eafn t\u1ea1i ho\u1eb7c v\u01b0\u1ee3t qua s\u1ed1 \u0111\u00f3. N\u1ebfu t\u00ednh to\u00e1n cho th\u1ea5y gi\u1edd c\u1ea7n 115 mm<\/strong> v\u00e0 b\u1ea1n \u0111ang \u1edf m\u1ee9c 100, \u0111\u1eebng tranh lu\u1eadn v\u1edbi to\u00e1n h\u1ecdc. H\u00e3y di chuy\u1ec3n ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n

      Ti\u1ebfp theo, x\u00e1c th\u1ef1c t\u1eebng c\u1eeda s\u1ed5 lo\u1ea1i b\u1ecf v\u00e0 t\u1eaft ch\u1ebf \u0111\u1ed9 theo ch\u01b0\u01a1ng tr\u00ecnh c\u1ee5 th\u1ec3 d\u1ef1a tr\u00ean b\u1ed9 d\u1ee5ng c\u1ee5 th\u1ef1c t\u1ebf \u0111\u00e3 l\u1eafp \u0111\u1eb7t. T\u1ea3i m\u00e3 d\u1ee5ng c\u1ee5 m\u1ed9t c\u00e1ch v\u1eadt l\u00fd. X\u00e1c nh\u1eadn CNC nh\u1eadn d\u1ea1ng n\u00f3. N\u1ebfu m\u00e3 d\u1ee5ng c\u1ee5 thi\u1ebfu, h\u1ec7 th\u1ed1ng ph\u1ea3i m\u1eb7c \u0111\u1ecbnh kh\u00f4ng lo\u1ea1i b\u1ecf. \u0110\u00fang, \u0111i\u1ec1u \u0111\u00f3 g\u00e2y ra s\u1ef1 c\u1ed1 ng\u1eaft m\u00e1y. \u0110i\u1ec1u \u0111\u00f3 r\u1ebb h\u01a1n m\u00e1u.<\/p>\n\n\n\n

      Sau \u0111\u00f3 ki\u1ec3m tra ch\u1ed1ng gi\u1eef v\u00e0 ch\u1ed1ng l\u1eb7p l\u1ea1i tr\u00ean c\u00e1c \u0111i\u1ec1u khi\u1ec3n k\u00e9p. Th\u1eed \u0111\u00fang ph\u01b0\u01a1ng ph\u00e1p m\u00e0 ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd d\u00f9ng \u0111\u1ec3 gian l\u1eadn \u2014 gi\u1eef m\u1ed9t n\u00fat l\u00f2ng b\u00e0n tay b\u1eb1ng m\u1ed9t kh\u1ed1i, gi\u1eef b\u00e0n \u0111\u1ea1p ch\u00e2n, chu k\u1ef3 li\u00ean t\u1ee5c. N\u1ebfu PLC an to\u00e0n kh\u00f4ng b\u00e1o l\u1ed7i, b\u1ea1n c\u00f3 v\u1ea5n \u0111\u1ec1 thi\u1ebft k\u1ebf, kh\u00f4ng ph\u1ea3i v\u1ea5n \u0111\u1ec1 k\u1ef7 lu\u1eadt.<\/p>\n\n\n\n

      Cu\u1ed1i c\u00f9ng, xem x\u00e9t ph\u00e2n lo\u1ea1i s\u1ea3n xu\u1ea5t. N\u1ebfu m\u1ed9t c\u00f4ng vi\u1ec7c \u201ct\u00f9y ch\u1ec9nh\u201d \u0111\u00e3 ch\u1ea1y h\u00e0ng tu\u1ea7n trong nhi\u1ec1u th\u00e1ng, kho\u1ea3ng c\u00e1ch an to\u00e0n \u0111\u01a1n thu\u1ea7n c\u00f3 l\u1ebd kh\u00f4ng th\u1ec3 bi\u1ec7n minh. Bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t k\u1ef9 thu\u1eadt ph\u1ea3i kh\u1edbp v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng th\u1ef1c t\u1ebf, kh\u00f4ng ph\u1ea3i c\u00e2u chuy\u1ec7n ch\u00fang ta k\u1ec3 v\u1ec1 n\u00f3.<\/p>\n\n\n\n

      OSHA y\u00eau c\u1ea7u ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 nh\u01b0ng kh\u00f4ng x\u00e1c \u0111\u1ecbnh kho\u1ea3ng th\u1eddi gian. H\u00e0ng th\u00e1ng l\u00e0 h\u1ee3p l\u00fd. Ch\u00edn m\u01b0\u01a1i ng\u00e0y \u0111\u1ee7 l\u00e2u \u0111\u1ec3 m\u00f2n phanh, ch\u1ec9nh s\u1eeda ph\u1ea7n m\u1ec1m, v\u00e0 tr\u00f4i d\u1ee5ng c\u1ee5 t\u00edch t\u1ee5 th\u00e0nh m\u1ed9t kho\u1ea3ng h\u1edf \u0111\u1ee7 r\u1ed9ng cho ng\u00f3n tay.<\/p>\n\n\n\n

      H\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 nhanh h\u01a1n b\u1ecf qua v\u00e0o th\u00e1ng M\u1ed9t c\u00f3 th\u1ec3 tr\u1edf n\u00ean ch\u1eadm h\u01a1n v\u00e0o th\u00e1ng T\u01b0 n\u1ebfu n\u00f3 ng\u1eaft m\u00e1y nhi\u1ec1u h\u01a1n, tr\u00f4i ngo\u00e0i dung sai, ho\u1eb7c kh\u00f4ng kh\u1edbp v\u1edbi d\u1ee5ng c\u1ee5. V\u00e0 khi n\u00f3 tr\u1edf n\u00ean ch\u1eadm h\u01a1n, x\u01b0\u1edfng s\u1ebd \u0111i\u1ec1u ch\u1ec9nh n\u00f3 theo c\u00e1ch duy nh\u1ea5t h\u1ecd bi\u1ebft.<\/p>\n\n\n\n

      C\u00e2u h\u1ecfi ti\u1ebfp theo kh\u00f4ng ph\u1ea3i l\u00e0 li\u1ec7u s\u1ef1 suy gi\u1ea3m c\u00f3 x\u1ea3y ra hay kh\u00f4ng.<\/p>\n\n\n\n

      M\u00e0 l\u00e0 li\u1ec7u h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 tr\u00f4i c\u1ee7a n\u00f3 tr\u01b0\u1edbc khi b\u00e0n tay con ng\u01b0\u1eddi ph\u00e1t hi\u1ec7n.<\/p>\n\n\n\n

      M\u1ed9t Khung Quy\u1ebft \u0110\u1ecbnh Th\u1ef1c T\u1ebf Cho B\u1ea3o V\u1ec7 M\u00e1y U\u1ed1n Press Brake<\/h2>\n\n\n\n

      T\u00f4i \u0111\u01b0\u1ee3c g\u1ecdi \u0111\u1ebfn m\u1ed9t x\u01b0\u1edfng n\u01a1i m\u1ed9t h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 b\u1eb1ng laser ho\u00e0n to\u00e0n m\u1edbi \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t s\u00e1u th\u00e1ng tr\u01b0\u1edbc \u0111\u00f3. Tr\u00ean l\u00fd thuy\u1ebft, n\u00f3 l\u00e0 h\u1ea1ng nh\u1ea5t \u2014 nh\u1eadn d\u1ea1ng d\u1ee5ng c\u1ee5, v\u00f9ng che ch\u1eafn c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh, t\u1ed1c \u0111\u1ed9 chu k\u1ef3 nhanh. Nh\u01b0ng tr\u00ean th\u1ef1c t\u1ebf, nghi\u00ean c\u1ee9u v\u1ec1 th\u1eddi gian d\u1eebng ch\u01b0a \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n l\u1ea1i sau khi thay van th\u1ee7y l\u1ef1c. Kho\u1ea3ng c\u00e1ch an to\u00e0n y\u00eau c\u1ea7u \u0111\u00e3 v\u01b0\u1ee3t qu\u00e1 100 mm<\/strong>, nh\u01b0ng b\u1ed9 ph\u00e1t v\u1eabn \u0111\u01b0\u1ee3c g\u1eafn \u1edf v\u1ecb tr\u00ed ban \u0111\u1ea7u. Kh\u00f4ng c\u00f3 c\u1ea3nh b\u00e1o. Kh\u00f4ng c\u00f3 \u0111\u00e8n nh\u1ea5p nh\u00e1y. Ch\u1ec9 c\u00f3 v\u1eadt l\u00fd \u0111ang ch\u1edd \u0111\u1ebfn l\u01b0\u1ee3t c\u1ee7a n\u00f3.<\/p>\n\n\n\n

      \u0110\u00f3 m\u1edbi l\u00e0 v\u1ea5n \u0111\u1ec1 m\u00e0 b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang gi\u1ea3i quy\u1ebft.<\/p>\n\n\n\n

      Kh\u00f4ng ph\u1ea3i l\u00e0 \u201cch\u00fang ta c\u00f3 tu\u00e2n th\u1ee7 kh\u00f4ng,\u201d m\u00e0 l\u00e0: c\u01a1 ch\u1ebf n\u00e0o bu\u1ed9c h\u1ec7 th\u1ed1ng n\u00e0y ph\u1ea3i t\u1ef1 l\u1ed9 ra \u0111\u1ed9 l\u1ec7ch c\u1ee7a n\u00f3 tr\u01b0\u1edbc khi th\u1ecbt ng\u01b0\u1eddi l\u00e0m \u0111i\u1ec1u \u0111\u00f3? N\u1ebfu b\u1ea1n kh\u00f4ng t\u00edch h\u1ee3p ph\u00e1t hi\u1ec7n t\u1ef1 \u0111\u1ed9ng ho\u1eb7c c\u01a1 ch\u1ebf h\u00e0nh ch\u00ednh b\u1eaft bu\u1ed9c, th\u00ec s\u1ef1 suy gi\u1ea3m trong 90 ng\u00e0y s\u1ebd lu\u00f4n th\u1eafng. V\u00ec v\u1eady, \u0111\u00e2y l\u00e0 khung t\u00f4i s\u1eed d\u1ee5ng khi m\u1ed9t qu\u1ea3n l\u00fd nh\u00e0 m\u00e1y h\u1ecfi t\u00f4i: \u201cN\u1ebfu ch\u00fang t\u00f4i ph\u1ea3i kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y b\u1eaft \u0111\u1ea7u t\u1eeb ng\u00e0y mai, ch\u00fang t\u00f4i b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u00e2u?\u201d<\/p>\n\n\n\n

      N\u1ebfu B\u1ea1n Ph\u1ea3i B\u1eaft \u0110\u1ea7u V\u00e0o Ng\u00e0y Mai, Vi\u1ec7c G\u00ec \u0110\u01b0\u1ee3c Gi\u1ea3i Quy\u1ebft Tr\u01b0\u1edbc Ti\u00ean?<\/h3>\n\n\n\n

      B\u1ea1n kh\u00f4ng b\u1eaft \u0111\u1ea7u v\u1edbi ph\u1ea7n c\u1ee9ng m\u1edbi.<\/p>\n\n\n\n

      B\u1ea1n b\u1eaft \u0111\u1ea7u v\u1edbi quy\u1ec1n s\u1edf h\u1eefu th\u1eddi gian d\u1eebng.<\/p>\n\n\n\n

      Ph\u1ea3i c\u00f3 ai \u0111\u00f3 \u2014 \u0111\u01b0\u1ee3c n\u00eau r\u00f5 t\u00ean \u2014 ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111o th\u1eddi gian d\u1eebng h\u00e0ng qu\u00fd b\u1eb1ng thi\u1ebft b\u1ecb \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n. Kh\u00f4ng ph\u1ea3i \u201cph\u00f2ng b\u1ea3o tr\u00ec\u201d n\u00f3i chung. M\u1ed9t ng\u01b0\u1eddi c\u1ee5 th\u1ec3. B\u1edfi v\u00ec kho\u1ea3ng c\u00e1ch an to\u00e0n kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t nh\u00e3n d\u00e1n; n\u00f3 l\u00e0 m\u1ed9t ph\u00e9p t\u00ednh g\u1eafn li\u1ec1n v\u1edbi \u0111\u1ed9 gi\u1ea3m t\u1ed1c th\u1ef1c t\u1ebf. N\u1ebfu phanh c\u1ee7a b\u1ea1n d\u1ecbch chuy\u1ec3n t\u1eeb 30 ms \u0111\u1ebfn 42 ms m\u00e0 kh\u00f4ng ai t\u00ednh l\u1ea1i, th\u00ec thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn hi\u1ec7n di\u1ec7n c\u1ee7a b\u1ea1n ch\u1ec9 l\u00e0 m\u1ed9t m\u00f3n trang tr\u00ed.<\/p>\n\n\n\n

      Th\u1ee9 hai, b\u1ea1n lo\u1ea1i b\u1ecf c\u00e1c \u0111i\u1ec3m l\u1ed7i \u0111\u01a1n l\u1eb7ng l\u1ebd.<\/p>\n\n\n\n

      N\u1ebfu h\u1ec7 th\u1ed1ng cho ph\u00e9p thay \u0111\u1ed5i d\u1ee5ng c\u1ee5 m\u00e0 kh\u00f4ng bu\u1ed9c x\u00e1c nh\u1eadn ID d\u1ee5ng c\u1ee5, \u0111\u00f3 l\u00e0 l\u1ed7i thi\u1ebft k\u1ebf. N\u1ebfu v\u00f9ng che ch\u1eafn c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u0103ng nh\u1eadp c\u1ee7a gi\u00e1m s\u00e1t vi\u00ean ho\u1eb7c d\u1ea5u v\u1ebft ki\u1ec3m to\u00e1n, \u0111\u00f3 l\u00e0 l\u1ed7i thi\u1ebft k\u1ebf. N\u1ebfu b\u1ed9 \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng b\u00e1o l\u1ed7i khi th\u1eddi gian d\u1eebng v\u01b0\u1ee3t qu\u00e1 gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c d\u00f9ng trong tham s\u1ed1 kho\u1ea3ng c\u00e1ch an to\u00e0n c\u1ee7a n\u00f3, \u0111\u00f3 l\u00e0 l\u1ed7i thi\u1ebft k\u1ebf. H\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i c\u00f3 th\u1ec3 kh\u00f3a t\u1ed1c \u0111\u1ed9 chu k\u1ef3 cho \u0111\u1ebfn khi m\u1ed9t gi\u00e1 tr\u1ecb th\u1eddi gian d\u1eebng m\u1edbi \u0111\u01b0\u1ee3c nh\u1eadp. \u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 c\u1ea7u k\u1ef3. \u0110\u00f3 l\u00e0 s\u1ef1 s\u1ed1ng c\u00f2n.<\/p>\n\n\n\n

      Th\u1ee9 ba, b\u1ea1n ki\u1ec3m tra n\u01a1i c\u00e1c vi ph\u1ea1m OSHA th\u1ef1c s\u1ef1 t\u1eadp trung \u2014 m\u1ee9c \u0111\u1ed9 ph\u01a1i nhi\u1ec5m t\u1ea1i \u0111i\u1ec3m v\u1eadn h\u00e0nh theo 29 CFR 1910.212 \u2014 v\u00e0 b\u1ea1n gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng c\u00e1c c\u00f4ng vi\u1ec7c c\u00f3 s\u1ea3n l\u01b0\u1ee3ng cao nh\u1ea5t c\u1ee7a m\u00ecnh l\u00e0 nh\u1eefng c\u00f4ng vi\u1ec7c d\u1ec5 b\u1ecb sai l\u1ec7ch nh\u1ea5t. Kh\u00f4ng ph\u1ea3i c\u00e1c \u0111\u01a1n h\u00e0ng t\u00f9y ch\u1ec9nh. S\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t t\u1ea1o ra s\u1ef1 t\u1ef1 m\u00e3n.<\/p>\n\n\n\n

      T\u1ea1i sao b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u00f3?<\/p>\n\n\n\n

      B\u1edfi v\u00ec n\u1ebfu \u0111\u1ed9 l\u1ec7ch kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc ho\u1eb7c k\u1ef9 thu\u1eadt s\u1ed1, th\u00ec m\u1ecdi c\u1ea3i ti\u1ebfn kh\u00e1c \u0111\u1ec1u d\u1ef1a v\u00e0o tr\u00ed nh\u1edb v\u00e0 thi\u1ec7n ch\u00ed.<\/p>\n\n\n\n

      C\u00e2n B\u1eb1ng Gi\u1eefa Tu\u00e2n Th\u1ee7 OSHA, Ni\u1ec1m Tin C\u1ee7a Ng\u01b0\u1eddi V\u1eadn H\u00e0nh V\u00e0 S\u1ea3n L\u01b0\u1ee3ng<\/h3>\n\n\n\n

      T\u00f4i \u0111\u00e3 \u0111i\u1ec1u tra m\u1ed9t tr\u01b0\u1eddng h\u1ee3p trong \u0111\u00f3 m\u1ed9t x\u01b0\u1edfng l\u1eafp \u0111\u1eb7t c\u00e1c t\u1ea5m ch\u1eafn c\u1ed1 \u0111\u1ecbnh v\u1edbi \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng hai tay \u2014 theo \u0111\u00fang s\u00e1ch v\u1edf tu\u00e2n th\u1ee7. C\u00e1c chi ti\u1ebft l\u00e0 nh\u1eefng thanh d\u00e0i. Ch\u00fang b\u1ecb u\u1ed1n cong. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh ph\u1ea3i gi\u1eef ch\u00fang g\u1ea7n khu\u00f4n d\u1eadp. V\u1eady chuy\u1ec7n g\u00ec \u0111\u00e3 x\u1ea3y ra? H\u1ecd th\u00e1o c\u00e1c t\u1ea5m b\u00ean ra v\u00e0 ch\u1ea1y \u1edf \u201cch\u1ebf \u0111\u1ed9 thi\u1ebft l\u1eadp\u201d su\u1ed1t bu\u1ed5i chi\u1ec1u. H\u1ecd kh\u00f4ng h\u1ec1 gi\u1ea5u gi\u1ebfm \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n

      \u0110\u00f3 l\u00e0 \u0111i\u1ec1u x\u1ea3y ra khi tu\u00e2n th\u1ee7 b\u1ecf qua y\u1ebfu t\u1ed1 c\u00f4ng th\u00e1i h\u1ecdc.<\/p>\n\n\n\n

      OSHA ch\u1ea5p nh\u1eadn \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng hai tay n\u1ebfu n\u00f3 gi\u1eef tay \u1edf ngo\u00e0i v\u00f9ng nguy hi\u1ec3m, th\u01b0\u1eddng y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch c\u00e1ch ly \u0111\u01b0\u1ee3c t\u00ednh t\u1eeb th\u1eddi gian d\u1eebng v\u00e0 h\u1eb1ng s\u1ed1 t\u1ed1c \u0111\u1ed9 tay. Nh\u01b0ng tr\u00ean m\u1ed9t m\u00e1y ch\u1ea5n kim lo\u1ea1i t\u1ea1o h\u00ecnh c\u00e1c chi ti\u1ebft kh\u00e1c nhau, tay ph\u1ea3i \u1edf g\u1ea7n ph\u00f4i. \u00c9p bu\u1ed9c ch\u00fang tr\u00e1nh xa b\u1eb1ng m\u1ed9t r\u00e0o c\u1ea3n c\u1ee9ng l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. Khi s\u1ea3n l\u01b0\u1ee3ng gi\u1ea3m, c\u00e1ch m\u00e0 ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd gian l\u1eadn \u0111\u1ec3 qua m\u1eb7t m\u1ed9t bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ec7 l\u00e0 \u0111i\u1ec1u c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c: h\u1ecd s\u1ebd chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 nh\u00edch v\u00e0 \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng b\u00e0n \u0111\u1ea1p \u0111\u1ec3 c\u00f3 th\u1ec3 \u201cc\u1ea3m nh\u1eadn\u201d \u0111\u1ed9 u\u1ed1n trong khi v\u1eabn gi\u1eef m\u1ed9t tay trong v\u00f9ng khu\u00f4n.<\/p>\n\n\n\n

      B\u1ea1n kh\u00f4ng th\u1ec3 gi\u1ea3i quy\u1ebft \u0111i\u1ec1u \u0111\u00f3 b\u1eb1ng k\u1ef7 lu\u1eadt.<\/p>\n\n\n\n

      B\u1ea1n gi\u1ea3i quy\u1ebft n\u00f3 b\u1eb1ng c\u00e1ch khi\u1ebfn ch\u1ebf \u0111\u1ed9 an to\u00e0n tr\u1edf th\u00e0nh ch\u1ebf \u0111\u1ed9 nhanh. C\u00e1c h\u1ec7 th\u1ed1ng laser ho\u1eb7c camera ch\u1ea5t l\u01b0\u1ee3ng cao cho ph\u00e9p t\u1ed1c \u0111\u1ed9 ram t\u1ed1i \u0111a cho \u0111\u1ebfn v\u00e0i milim\u00e9t tr\u00ean v\u1eadt li\u1ec7u \u2014 mi\u1ec5n l\u00e0 th\u1eddi gian d\u1eebng \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch \u0111\u00f3 \u2014 gi\u00fap an to\u00e0n \u0111i \u0111\u00f4i v\u1edbi n\u0103ng su\u1ea5t. N\u1ebfu th\u1eddi gian d\u1eebng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn c\u1ee7a b\u1ea1n h\u1ed7 tr\u1ee3 v\u1eadn h\u00e0nh g\u1ea7n kho\u1ea3ng c\u00e1ch t\u1ea1i 4 mm<\/strong>, ng\u01b0\u1eddi v\u1eadn h\u00e0nh kh\u00f4ng c\u1ea7n ph\u1ea3i v\u01b0\u1ee3t qua b\u1ea5t k\u1ef3 th\u1ee9 g\u00ec \u0111\u1ec3 \u0111\u1ea1t t\u1ed1c \u0111\u1ed9. An to\u00e0n tr\u1edf n\u00ean v\u00f4 h\u00ecnh v\u00ec n\u00f3 kh\u00f4ng c\u1ea3n tr\u1edf c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n

      Gi\u1edd \u0111\u00e2y c\u00f3 m\u1ed9t s\u1ef1 c\u0103ng th\u1eb3ng: gi\u00e1m s\u00e1t ch\u1eb7t ch\u1ebd h\u01a1n c\u00f3 th\u1ec3 khi\u1ebfn ng\u01b0\u1eddi ta c\u1ea3m th\u1ea5y b\u1ecb theo d\u00f5i. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh kh\u00f4ng tin t\u01b0\u1edfng nh\u1eefng h\u1ec7 th\u1ed1ng hay k\u00edch ho\u1ea1t kh\u00f4ng \u0111o\u00e1n tr\u01b0\u1edbc \u0111\u01b0\u1ee3c. V\u00ec th\u1ebf, m\u1ed7i l\u1ea7n ng\u1eaft g\u00e2y phi\u1ec1n to\u00e1i ph\u1ea3i \u0111\u01b0\u1ee3c xem l\u00e0 l\u1ed7i thi\u1ebft k\u1ebf, kh\u00f4ng ph\u1ea3i v\u1ea5n \u0111\u1ec1 th\u00e1i \u0111\u1ed9. N\u1ebfu b\u1ed9 b\u1ea3o v\u1ec7 l\u00e0m gi\u00e1n \u0111o\u1ea1n chuy\u1ec3n \u0111\u1ed9ng tay h\u1ee3p l\u00fd, h\u1ec7 th\u1ed1ng s\u1ebd m\u1ea5t uy t\u00edn.<\/p>\n\n\n\n

      V\u00e0 khi uy t\u00edn m\u1ea5t \u0111i, \u0111i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra sau s\u00e1u th\u00e1ng?<\/p>\n\n\n\n

      H\u00ecnh \u1ea3nh v\u1ec1 \u201cS\u1ef1 T\u1ed1t\u201d S\u00e1u Th\u00e1ng Sau Khi Tri\u1ec3n Khai<\/h3>\n\n\n\n

      N\u00f3 kh\u00f4ng gi\u1ed1ng nh\u01b0 vi\u1ec7c kh\u00f4ng c\u00f3 vi ph\u1ea1m n\u00e0o.<\/p>\n\n\n\n

      N\u00f3 gi\u1ed1ng nh\u01b0 OEE \u1ed5n \u0111\u1ecbnh m\u00e0 kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 ch\u1ec9nh s\u1eeda h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 n\u00e0o kh\u00f4ng \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch.<\/p>\n\n\n\n

      T\u00f4i \u0111\u00e3 th\u1ea5y s\u1ef1 kh\u00e1c bi\u1ec7t. C\u00e1c nh\u00e0 m\u00e1y h\u00e0ng \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng g\u1ea7n m\u1ee9c OEE 90% v\u1edbi t\u1ef7 l\u1ec7 ch\u1ea5n th\u01b0\u01a1ng r\u1ea5t th\u1ea5p, c\u00f2n nh\u1eefng nh\u00e0 m\u00e1y k\u00e9m h\u01a1n th\u00ec l\u1ebft \u0111i \u1edf m\u1ee9c gi\u1eefa 70 v\u1edbi t\u1ef7 l\u1ec7 ch\u1ea5n th\u01b0\u01a1ng cao h\u01a1n h\u00e0ng ch\u1ee5c l\u1ea7n. M\u1ed1i li\u00ean h\u1ec7 \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00e9p m\u00e0u. N\u00f3 c\u00f3 ngh\u0129a l\u00e0 h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 c\u1ee7a h\u1ecd h\u1ed7 tr\u1ee3 cho d\u00f2ng ch\u1ea3y thay v\u00ec ch\u1ed1ng l\u1ea1i n\u00f3.<\/p>\n\n\n\n

      Sau s\u00e1u th\u00e1ng, \u201ct\u1ed1t\u201d ngh\u0129a l\u00e0:<\/p>\n\n\n\n

        \n
      • C\u00e1c ph\u00e9p \u0111o th\u1eddi gian d\u1eebng \u0111\u01b0\u1ee3c ghi l\u1ea1i \u1edf c\u00e1c kho\u1ea3ng th\u1eddi gian x\u00e1c \u0111\u1ecbnh, v\u1edbi vi\u1ec7c t\u1ef1 \u0111\u1ed9ng t\u00ednh to\u00e1n l\u1ea1i kho\u1ea3ng c\u00e1ch an to\u00e0n c\u1ea7n thi\u1ebft khi c\u00f3 thay \u0111\u1ed5i.<\/li>\n\n\n\n
      • Nh\u1eadt k\u00fd PLC an to\u00e0n \u0111\u01b0\u1ee3c xem x\u00e9t h\u00e0ng th\u00e1ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c ch\u1ec9nh s\u1eeda v\u00f9ng tr\u1ed1ng, thay \u0111\u1ed5i c\u1eeda s\u1ed5 t\u1eaft ti\u1ebfng, ho\u1eb7c nh\u1eefng c\u1ed1 g\u1eafng ghi \u0111\u00e8.<\/li>\n\n\n\n
      • Th\u01b0 vi\u1ec7n d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi h\u1ed3 s\u01a1 b\u1ea3o v\u1ec7 \u0111\u1ec3 khi thay khu\u00f4n m\u00e0 kh\u00f4ng c\u00f3 x\u00e1c nh\u1eadn s\u1ebd k\u00edch ho\u1ea1t l\u1ed7i, kh\u00f4ng ch\u1ec9 c\u1ea3nh b\u00e1o.<\/li>\n\n\n\n
      • Kh\u00f4ng c\u00f3 s\u1ef1 gia t\u0103ng trong c\u00e1c v\u00f9ng t\u1eaft tr\u1ed1ng \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n thi\u1ebft k\u1ebf nh\u01b0 15 mm<\/strong> m\u00e0 kh\u00f4ng c\u00f3 ph\u00ea duy\u1ec7t c\u1ee7a k\u1ef9 s\u01b0.<\/li>\n<\/ul>\n\n\n\n

        V\u00e0 \u0111\u00e2y l\u00e0 ph\u1ea7n kh\u00f4ng hi\u1ec3n nhi\u00ean.<\/p>\n\n\n\n

        B\u1ea1n kh\u00f4ng \u0111o t\u00ecnh tr\u1ea1ng h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 b\u1eb1ng c\u00e1ch \u0111\u1ebfm s\u1ed1 ch\u1ea5n th\u01b0\u01a1ng. B\u1ea1n \u0111o b\u1eb1ng c\u00e1ch \u0111\u1ebfm xem h\u1ec7 th\u1ed1ng \u0111\u00e3 bao nhi\u00eau l\u1ea7n c\u1ed1 g\u1eafng c\u1ee9u b\u1ea1n kh\u1ecfi ch\u00ednh m\u00ecnh\u2014c\u00e1c l\u1ed7i, vi\u1ec7c t\u00ednh to\u00e1n l\u1ea1i, c\u00e1c ch\u1ec9nh s\u1eeda b\u1ecb ch\u1eb7n\u2014v\u00e0 li\u1ec7u nh\u1eefng s\u1ef1 ki\u1ec7n \u0111\u00f3 c\u00f3 gi\u1ea3m \u0111i v\u00ec quy tr\u00ecnh c\u1ea3i thi\u1ec7n, ch\u1ee9 kh\u00f4ng ph\u1ea3i v\u00ec ai \u0111\u00f3 gi\u1ea3m \u0111\u1ed9 nh\u1ea1y.<\/p>\n\n\n\n

        \u0110\u00f3 l\u00e0 thay \u0111\u1ed5i c\u00e1ch nh\u00ecn.<\/p>\n\n\n\n

        H\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 m\u00e1y u\u1ed1n kim lo\u1ea1i kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t r\u00e0o c\u1ea3n t\u0129nh gi\u1eefa th\u00e9p v\u00e0 da. N\u00f3 l\u00e0 m\u1ed9t v\u00f2ng \u0111i\u1ec1u khi\u1ec3n. C\u00e1c \u0111\u1ea7u v\u00e0o thay \u0111\u1ed5i\u2014th\u1ee7y l\u1ef1c, d\u1ee5ng c\u1ee5, ch\u1ec9nh s\u1eeda ph\u1ea7n m\u1ec1m, \u00e1p l\u1ef1c s\u1ea3n xu\u1ea5t. M\u1ed9t h\u1ec7 th\u1ed1ng kh\u1ecfe m\u1ea1nh ph\u00e1t hi\u1ec7n s\u1ef1 sai l\u1ec7ch \u0111\u00f3, bu\u1ed9c vi\u1ec7c t\u00ednh to\u00e1n l\u1ea1i v\u00e0 ch\u1ed1ng l\u1ea1i s\u1ef1 m\u1edf r\u1ed9ng r\u1ee7i ro \u00e2m th\u1ea7m. M\u1ed9t h\u1ec7 th\u1ed1ng y\u1ebfu th\u00ec d\u1ef1a v\u00e0o tr\u00ed nh\u1edb v\u00e0 \u00fd t\u1ed1t.<\/p>\n\n\n\n

        V\u00ec v\u1eady, c\u00e2u h\u1ecfi c\u1ea7n mang theo kh\u00f4ng ph\u1ea3i l\u00e0 \u201cH\u00f4m nay ch\u00fang ta c\u00f3 tu\u00e2n th\u1ee7 kh\u00f4ng?\u201d<\/p>\n\n\n\n

        M\u00e0 l\u00e0: n\u1ebfu t\u1ed1i nay phanh ch\u1eadm th\u00eam 10 mili gi\u00e2y, ai\u2014ho\u1eb7c c\u00e1i g\u00ec\u2014s\u1ebd bi\u1ebft tr\u01b0\u1edbc khi ca \u0111\u1ea7u ti\u00ean v\u00e0o ca?<\/p>","protected":false},"excerpt":{"rendered":"

        T\u00f4i b\u01b0\u1edbc v\u00e0o m\u1ed9t c\u1eeda h\u00e0ng ba th\u00e1ng sau khi h\u1ecd l\u1eafp \u0111\u1eb7t nh\u1eefng t\u1ea5m r\u00e8m \u00e1nh s\u00e1ng m\u1edbi tinh cho m\u1ed7i m\u00e1y ch\u1ea5n t\u00f4n. C\u00e1c c\u1ed9t m\u00e0u v\u00e0ng, d\u00e2y \u0111i\u1ec7n g\u1ecdn g\u00e0ng, gi\u1ea5y t\u1edd OSHA \u0111\u01b0\u1ee3c \u0111\u00f3ng khung treo tr\u00ean t\u01b0\u1eddng. T\u00f4i nh\u00ecn xu\u1ed1ng b\u1ed9 ph\u00e1t c\u1ee7a chi\u1ebfc m\u00e1y \u201ct\u1ed9i \u0111\u1ed3\u201d nh\u1ea5t v\u00e0 th\u1ea5y m\u1ed9t d\u1ea3i b\u0103ng keo gi\u1ea5y che \u0111i ba tia s\u00e1ng. H\u1ecd ch\u1eb3ng h\u1ec1 gi\u1ea5u gi\u1ebfm \u0111i\u1ec1u \u0111\u00f3. Trong m\u1ed9t cu\u1ed9c \u0111\u00e1nh gi\u00e1 hi\u1ec7n tr\u01b0\u1eddng [\u2026]<\/p>","protected":false},"author":3,"featured_media":1019,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-1018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/1018","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/comments?post=1018"}],"version-history":[{"count":2,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/1018\/revisions"}],"predecessor-version":[{"id":1069,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/1018\/revisions\/1069"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media\/1019"}],"wp:attachment":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media?parent=1018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/categories?post=1018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/tags?post=1018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}